{"id":22108,"date":"2025-11-04T07:22:04","date_gmt":"2025-11-04T07:22:04","guid":{"rendered":"https:\/\/mascherpa.it\/non-categorizzato\/"},"modified":"2025-12-03T15:01:27","modified_gmt":"2025-12-03T15:01:27","slug":"the-surface-preparation","status":"publish","type":"post","link":"https:\/\/mascherpa.it\/en\/blog\/the-surface-preparation\/","title":{"rendered":"Surface Preparation: Guide for Industrial Adhesives"},"content":{"rendered":"[vc_row type=&#8221;in_container&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; bg_color=&#8221;#F7F7F7&#8243; scene_position=&#8221;center&#8221; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221; row_border_radius=&#8221;15px&#8221; row_border_radius_applies=&#8221;bg&#8221; overflow=&#8221;visible&#8221; overlay_strength=&#8221;0.3&#8243; gradient_direction=&#8221;left_to_right&#8221; shape_divider_position=&#8221;bottom&#8221; bg_image_animation=&#8221;none&#8221; gradient_type=&#8221;default&#8221; shape_type=&#8221;&#8221;][vc_column column_padding=&#8221;padding-3-percent&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; column_position=&#8221;default&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221; column_padding_type=&#8221;default&#8221; gradient_type=&#8221;default&#8221;][vc_row_inner column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; text_align=&#8221;left&#8221; row_position=&#8221;default&#8221; row_position_tablet=&#8221;inherit&#8221; row_position_phone=&#8221;inherit&#8221; overflow=&#8221;visible&#8221; pointer_events=&#8221;all&#8221;][vc_column_inner column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; overflow=&#8221;visible&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]Key Points[\/vc_column_text]<div class=\"nectar-fancy-ul\" data-list-icon=\"icon-salient-check\" data-animation=\"true\" data-animation-delay=\"0\" data-color=\"accent-color\" data-spacing=\"default\" data-alignment=\"left\"> \n<ul>\n<li><b>Surface preparation <\/b><span style=\"font-weight: 400;\">eliminates <\/span><b>contaminants <\/b><span style=\"font-weight: 400;\">e <\/span><b>oxides <\/b><span style=\"font-weight: 400;\">ensuring an <\/span><b>optimal wettability <\/b><span style=\"font-weight: 400;\">and a <\/span><b>increased <\/b><span style=\"font-weight: 400;\">area of <\/span><b>adhesion <\/b><span style=\"font-weight: 400;\">for stronger bonds. <\/span> <\/li>\n<li><b>Degreasing<\/b>, <b>abrasion <\/b>, and <b>chemical or physical treatments <\/b>are the three pillars for achieving <b>effective <\/b>and <b>durable <\/b> <b>bonding <\/b>on different <b>types of substrates<\/b>.<\/li>\n<li>Even if the <b>surface appears clean <\/b>, <b>degreasing <\/b>is essential and can be performed with <b>solvents, detergents, ultrasound, or alkaline methods. <\/b> <\/li>\n<li><b>Controlled abrasion <\/b>improves <b>adhesive anchorage <\/b>and is accomplished by <b>sandblasting, sanding <\/b>, or <b>dedicated techniques <\/b>for <b>plastic and metal<\/b> materials.<\/li>\n<li><b>Special<\/b> treatments <b>such as plasma<\/b>, <b>anodizing <\/b>or <b>primer application <\/b>ensure maximum <b>chemical compatibility <\/b>and <b>best performance <\/b>over time.<\/li>\n<\/ul>\n <\/div>[\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row type=&#8221;in_container&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; scene_position=&#8221;center&#8221; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221; row_border_radius=&#8221;none&#8221; row_border_radius_applies=&#8221;bg&#8221; overflow=&#8221;visible&#8221; overlay_strength=&#8221;0.3&#8243; gradient_direction=&#8221;left_to_right&#8221; shape_divider_position=&#8221;bottom&#8221; bg_image_animation=&#8221;none&#8221;][vc_column column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; column_position=&#8221;default&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][divider line_type=&#8221;No Line&#8221; custom_height=&#8221;30&#8243;][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]<span style=\"font-weight: 400;\">Surface preparation is one of the most important steps to achieve high adhesive strength and improve the performance of the adhesive itself. For effective bonding, the adhesive must completely wet the surface of each substrate.   <\/span><\/p>\n<p><b>Most surfaces are covered with layers of contaminants, such as dust, oils, grease, and oxide<\/b><span style=\"font-weight: 400;\">. These contaminants adversely affect adhesion, and if they are not properly removed before applying the adhesive, bond failure can occur.  <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Surface pretreatments are aimed at removing all types of contaminants on the substrate surface, allowing the adhesive to settle on the actual surface instead of its apparent surface.  <\/span><b>Proper pretreatment can activate the surface energy of substrates and increase the active bonding area to improve adhesion.  <\/b>[\/vc_column_text][divider line_type=&#8221;No Line&#8221; custom_height=&#8221;30&#8243;][image_with_animation image_url=&#8221;34369&#8243; image_size=&#8221;full&#8221; max_width=&#8221;100%&#8221; max_width_mobile=&#8221;default&#8221; animation_type=&#8221;entrance&#8221; animation=&#8221;None&#8221; animation_movement_type=&#8221;transform_y&#8221; hover_animation=&#8221;none&#8221; alignment=&#8221;&#8221; border_radius=&#8221;15px&#8221; box_shadow=&#8221;small_depth&#8221; image_loading=&#8221;default&#8221;][divider line_type=&#8221;No Line&#8221; custom_height=&#8221;30&#8243;][\/vc_column][\/vc_row][vc_row type=&#8221;in_container&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; bg_color=&#8221;#F7F7F7&#8243; scene_position=&#8221;center&#8221; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221; row_border_radius=&#8221;15px&#8221; row_border_radius_applies=&#8221;bg&#8221; overflow=&#8221;visible&#8221; overlay_strength=&#8221;0.3&#8243; gradient_direction=&#8221;left_to_right&#8221; shape_divider_position=&#8221;bottom&#8221; bg_image_animation=&#8221;none&#8221; gradient_type=&#8221;default&#8221; shape_type=&#8221;&#8221;][vc_column column_padding=&#8221;padding-3-percent&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; column_position=&#8221;default&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221; column_padding_type=&#8221;default&#8221; gradient_type=&#8221;default&#8221;][vc_row_inner column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; text_align=&#8221;left&#8221; row_position=&#8221;default&#8221; row_position_tablet=&#8221;inherit&#8221; row_position_phone=&#8221;inherit&#8221; overflow=&#8221;visible&#8221; pointer_events=&#8221;all&#8221;][vc_column_inner column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; overflow=&#8221;visible&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]Index[\/vc_column_text][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<ul>\n<li><a href=\"#1\">How to prepare surfaces before applying adhesive<\/a>\n<ul>\n<li><a href=\"#2\">Degreasing: the basis of any good surface preparation<\/a><\/li>\n<li><a href=\"#3\">Abrasion: creating an adhesive-ready surface<\/a>\n<ul>\n<li><a href=\"#4\">Plastic and composite surfaces<\/a><\/li>\n<li><a href=\"#5\">Metal surfaces<\/a><\/li>\n<\/ul>\n<\/li>\n<li><a href=\"#6\">Chemical and physical treatments for maximum performance<\/a>\n<ul>\n<li><a href=\"#7\">Treatments for metals<\/a><\/li>\n<li><a href=\"#8\">Treatments for plastics and composites<\/a><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li><a href=\"#9\">Efficacy as a function of surface preparation methods<\/a><\/li>\n<li><a href=\"#10\">The water drop test<\/a><\/li>\n<li><a href=\"#11\">The importance of surface preparation for bonding<\/a><\/li>\n<\/ul>\n[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row type=&#8221;in_container&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; scene_position=&#8221;center&#8221; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221; row_border_radius=&#8221;none&#8221; row_border_radius_applies=&#8221;bg&#8221; overflow=&#8221;visible&#8221; overlay_strength=&#8221;0.3&#8243; gradient_direction=&#8221;left_to_right&#8221; shape_divider_position=&#8221;bottom&#8221; bg_image_animation=&#8221;none&#8221;][vc_column column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; column_position=&#8221;default&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_row_inner column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; text_align=&#8221;left&#8221; row_position=&#8221;default&#8221; row_position_tablet=&#8221;inherit&#8221; row_position_phone=&#8221;inherit&#8221; overflow=&#8221;visible&#8221; pointer_events=&#8221;all&#8221; el_id=&#8221;1&#8243;][vc_column_inner column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; overflow=&#8221;visible&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][divider line_type=&#8221;No Line&#8221; custom_height=&#8221;30&#8243;][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<h2><b>How to prepare surfaces before applying adhesive<\/b><\/h2>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]<span style=\"font-weight: 400;\">Some of the methods for surface preparation before the application of <\/span><a href=\"https:\/\/mascherpa.it\/en\/product-guide\/product-guide\/industrial-adhesives\/\"><span style=\"font-weight: 400;\">industrial adhesives<\/span><\/a> <a href=\"https:\/\/mascherpa.it\/guida-prodotto\/marchi\/araldite\/\"><b>ARALDITE\u00ae <\/b><\/a><span style=\"font-weight: 400;\">are: <\/span> <\/p>\n<ul>\n<li><b>Degreasing  <\/b><\/li>\n<li><b>Abrasion  <\/b><\/li>\n<li><b>Chemical or physical treatments  <\/b><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">These surface preparation methods are suitable for most industrial applications; however, the type of pretreatment will depend on the type of substrate.  <\/span>[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_row_inner column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; text_align=&#8221;left&#8221; row_position=&#8221;default&#8221; row_position_tablet=&#8221;inherit&#8221; row_position_phone=&#8221;inherit&#8221; overflow=&#8221;visible&#8221; pointer_events=&#8221;all&#8221; el_id=&#8221;2&#8243;][vc_column_inner column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; overflow=&#8221;visible&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<h3><b>Degreasing: the basis of any good surface preparation<\/b><\/h3>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]<span style=\"font-weight: 400;\">The removal of <\/span><b>oil, grease and release agents <\/b><span style=\"font-weight: 400;\">is the first step in ensuring effective bonding. <\/span> <\/p>\n<p><span style=\"font-weight: 400;\">Even when the <\/span><b>surfaces <\/b><span style=\"font-weight: 400;\">appear <\/span><b>clean<\/b><span style=\"font-weight: 400;\">, the <\/span><b>degreasing <\/b><span style=\"font-weight: 400;\">must be <\/span><b>performed <\/b><span style=\"font-weight: 400;\">by one of the methods given below: <\/span> <\/p>\n<ul>\n<li><b>Steam Degreasing<\/b><span style=\"font-weight: 400;\">: pieces come  <\/span><b>suspended  <\/b><span style=\"font-weight: 400;\">in a&#8217;<\/span><b>degreasing unit  <\/b><span style=\"font-weight: 400;\">with  <\/span><b>common solvents  <\/b><span style=\"font-weight: 400;\">(<\/span><b>acetone<\/b><span style=\"font-weight: 400;\">,  <\/span><b>MEK<\/b><span style=\"font-weight: 400;\">,  <\/span><b>ethanol<\/b><span style=\"font-weight: 400;\">,  <\/span><b>isopropanol<\/b><span style=\"font-weight: 400;\">).  <\/span><\/li>\n<li><b>Solvent immersion<\/b><span style=\"font-weight: 400;\">: two tanks with the <\/span><b>same solvent<\/b><span style=\"font-weight: 400;\">, one for <\/span><b>washing <\/b><span style=\"font-weight: 400;\">and one for the <\/span><b>rinsing<\/b><span style=\"font-weight: 400;\">; when the first is contaminated, the <\/span><b>tanks are reversed<\/b><span style=\"font-weight: 400;\">. <\/span> <\/li>\n<li><b>Manual cleaning<\/b><span style=\"font-weight: 400;\">: with <\/span><b>brushes<\/b><span style=\"font-weight: 400;\">, <\/span><b>cloths <\/b><span style=\"font-weight: 400;\">o <\/span><b>papers <\/b><span style=\"font-weight: 400;\">free of <\/span><b>lint <\/b><span style=\"font-weight: 400;\">e <\/span><b>clean solvent<\/b><span style=\"font-weight: 400;\">; for fine work you can use the <\/span><b>aerosol spray cleaning <\/b><span style=\"font-weight: 400;\">to avoid residue. <\/span> <\/li>\n<li><b>Alkaline degreasing<\/b><span style=\"font-weight: 400;\">: with solutions to  <\/span><b>hydroxide base<\/b><span style=\"font-weight: 400;\">,  <\/span><b>phosphates  <\/b><span style=\"font-weight: 400;\">o  <\/span><b>organic surfactants<\/b><span style=\"font-weight: 400;\">; may be  <\/span><b>hot runner  <\/b><span style=\"font-weight: 400;\">o  <\/span><b>cold<\/b><span style=\"font-weight: 400;\">, with  <\/span><b>washes  <\/b><span style=\"font-weight: 400;\">e  <\/span><b>neutralization  <\/b><span style=\"font-weight: 400;\">final.  <\/span><\/li>\n<li><b>Ultrasonic degreasing<\/b><span style=\"font-weight: 400;\">: suitable for samples of <\/span><b>small sizes<\/b><span style=\"font-weight: 400;\">. <\/span> <\/li>\n<li><b>Degreasing with detergent<\/b><span style=\"font-weight: 400;\">: by means of <\/span><b>nonionic detergents<\/b><span style=\"font-weight: 400;\">, <\/span><b>rinsing with warm water <\/b><span style=\"font-weight: 400;\">e <\/span><b>drying <\/b><span style=\"font-weight: 400;\">with <\/span><b>forced hot air<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<\/ul>\n[\/vc_column_text][nectar_video_lightbox link_style=&#8221;play_button_2&#8243; nectar_play_button_color=&#8221;Default-Accent-Color&#8221; image_url=&#8221;16747&#8243; hover_effect=&#8221;defaut&#8221; box_shadow=&#8221;small_depth&#8221; border_radius=&#8221;5px&#8221; play_button_size=&#8221;default&#8221; video_url=&#8221;https:\/\/www.youtube.com\/watch?v=Hfxrbc_sfks&#8221;][\/vc_column_inner][\/vc_row_inner][vc_row_inner column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; text_align=&#8221;left&#8221; row_position=&#8221;default&#8221; row_position_tablet=&#8221;inherit&#8221; row_position_phone=&#8221;inherit&#8221; overflow=&#8221;visible&#8221; pointer_events=&#8221;all&#8221; el_id=&#8221;3&#8243;][vc_column_inner column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; overflow=&#8221;visible&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<h3>Abrasion: creating an adhesive-ready surface<\/h3>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]<span style=\"font-weight: 400;\">A&#8217;<\/span><b>controlled abrasion <\/b><span style=\"font-weight: 400;\">improves the<\/span><b>mechanical anchorage <\/b><span style=\"font-weight: 400;\">e <\/span><b>promotes wettability<\/b><span style=\"font-weight: 400;\">. <\/span> <\/p>\n<p><span style=\"font-weight: 400;\">After processing it is necessary to <\/span><b>thoroughly remove all residual particles<\/b><span style=\"font-weight: 400;\">, repeating the <\/span><b>degreasing <\/b><span style=\"font-weight: 400;\">or by using <\/span><b>soft brushes <\/b><span style=\"font-weight: 400;\">e <\/span><b>industrial suction<\/b><span style=\"font-weight: 400;\">. <\/span>[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_row_inner column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; text_align=&#8221;left&#8221; row_position=&#8221;default&#8221; row_position_tablet=&#8221;inherit&#8221; row_position_phone=&#8221;inherit&#8221; overflow=&#8221;visible&#8221; pointer_events=&#8221;all&#8221; el_id=&#8221;4&#8243;][vc_column_inner column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; overflow=&#8221;visible&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<h4><b>Plastic and composite surfaces  <\/b><\/h4>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]<span style=\"font-weight: 400;\">To remove traces of <\/span><b>release agents<\/b><span style=\"font-weight: 400;\">, the surface layer must <\/span><b>be removed<\/b><span style=\"font-weight: 400;\">. <\/span><b>Sandblasting <\/b><span style=\"font-weight: 400;\">can be replaced by <\/span><b>manual sanding <\/b><span style=\"font-weight: 400;\">o <\/span><b>mechanical<\/b><span style=\"font-weight: 400;\">, followed by thorough cleaning. <\/span> <\/p>\n<p><span style=\"font-weight: 400;\">Sui  <\/span><a href=\"https:\/\/mascherpa.it\/guida-prodotto\/adesivi-industriali\/superfici\/adesivi-per-compositi\/\"><b>composites <\/b><\/a><span style=\"font-weight: 400;\">it is recommended to use the  <\/span><b>peel ply<\/b><span style=\"font-weight: 400;\">, a  <\/span><b>applied fabric  <\/b><span style=\"font-weight: 400;\">during the  <\/span><b>molding  <\/b><span style=\"font-weight: 400;\">e  <\/span><b>removed  <\/b><span style=\"font-weight: 400;\">immediately before  <\/span><b>of bonding<\/b><span style=\"font-weight: 400;\">, which leaves a  <\/span><b>rough and clean surface<\/b><span style=\"font-weight: 400;\">, ready for the<\/span><b>industrial adhesive<\/b><span style=\"font-weight: 400;\">.  <\/span><\/p>\n<p><b>Cryoblasting <\/b><span style=\"font-weight: 400;\">with <\/span><b>CO pellets<\/b><span style=\"font-weight: 400;\">\u2082 represents an<\/span><b>interesting alternative<\/b><span style=\"font-weight: 400;\">, in that it eliminates <\/span><b>abrasive residues <\/b><span style=\"font-weight: 400;\">and reduces the <\/span><b>risk of overheating.<\/b>[\/vc_column_text][nectar_video_lightbox link_style=&#8221;play_button_2&#8243; nectar_play_button_color=&#8221;Default-Accent-Color&#8221; image_url=&#8221;34378&#8243; hover_effect=&#8221;defaut&#8221; box_shadow=&#8221;small_depth&#8221; border_radius=&#8221;5px&#8221; play_button_size=&#8221;default&#8221; video_url=&#8221;https:\/\/www.youtube.com\/watch?v=svElubwvR9s&#8221;][\/vc_column_inner][\/vc_row_inner][vc_row_inner column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; text_align=&#8221;left&#8221; row_position=&#8221;default&#8221; row_position_tablet=&#8221;inherit&#8221; row_position_phone=&#8221;inherit&#8221; overflow=&#8221;visible&#8221; pointer_events=&#8221;all&#8221; el_id=&#8221;5&#8243;][vc_column_inner column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; overflow=&#8221;visible&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<h4><b>Metal surfaces  <\/b><\/h4>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]<span style=\"font-weight: 400;\">The preparation of <\/span><a href=\"https:\/\/mascherpa.it\/guida-prodotto\/adesivi-industriali\/superfici\/metalli\/\"><span style=\"font-weight: 400;\">metals <\/span><\/a><span style=\"font-weight: 400;\">involves the <\/span><b>removal of oxides <\/b><span style=\"font-weight: 400;\">e <\/span><b>corrosion<\/b><span style=\"font-weight: 400;\">, preferably by <\/span><b>sandblasting<\/b><span style=\"font-weight: 400;\">. The most common abrasives are:  <\/span><\/p>\n<p><b>fused alumina<\/b><span style=\"font-weight: 400;\">, ideal for <\/span><b>aluminum alloys <\/b><span style=\"font-weight: 400;\">e <\/span><b>stainless steels<\/b><span style=\"font-weight: 400;\">; <\/span> <\/p>\n<p><b>silicon carbide<\/b><span style=\"font-weight: 400;\">, more <\/span><b>sharp <\/b><span style=\"font-weight: 400;\">e <\/span><b>friable<\/b><span style=\"font-weight: 400;\">, suitable for <\/span><b>special alloys <\/b><span style=\"font-weight: 400;\">o <\/span><b>extremely hard materials<\/b><span style=\"font-weight: 400;\">. <\/span> <\/p>\n<p><span style=\"font-weight: 400;\">The <\/span><b>grain size <\/b><span style=\"font-weight: 400;\">affects the <\/span><b>quality of the finish<\/b><span style=\"font-weight: 400;\">: For most applications, grits between <\/span><b>46 and 120 mesh<\/b><span style=\"font-weight: 400;\">. If the  <\/span><b>sandblasting <\/b><span style=\"font-weight: 400;\">is not possible, a <\/span><b>brushing or sanding <\/b><span style=\"font-weight: 400;\">with <\/span><b>abrasive <\/b><span style=\"font-weight: 400;\">fine (alumina or silicon carbide), followed by cleaning and drying. <\/span> <\/p>\n<p><span style=\"font-weight: 400;\">The <\/span><b>painted surfaces <\/b><span style=\"font-weight: 400;\">must always be <\/span><b>stripped<\/b><span style=\"font-weight: 400;\">, since the <\/span><b>poor adhesion <\/b><span style=\"font-weight: 400;\">of paint to metal can reduce the <\/span><b>strength of the joint<\/b><span style=\"font-weight: 400;\">. <\/span>[\/vc_column_text][nectar_video_lightbox link_style=&#8221;play_button_2&#8243; nectar_play_button_color=&#8221;Default-Accent-Color&#8221; image_url=&#8221;34382&#8243; hover_effect=&#8221;defaut&#8221; box_shadow=&#8221;small_depth&#8221; border_radius=&#8221;5px&#8221; play_button_size=&#8221;default&#8221; video_url=&#8221;https:\/\/www.youtube.com\/watch?v=r_lh9zZZILI&#8221;][\/vc_column_inner][\/vc_row_inner][vc_row_inner column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; text_align=&#8221;left&#8221; row_position=&#8221;default&#8221; row_position_tablet=&#8221;inherit&#8221; row_position_phone=&#8221;inherit&#8221; overflow=&#8221;visible&#8221; pointer_events=&#8221;all&#8221; el_id=&#8221;6&#8243;][vc_column_inner column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; overflow=&#8221;visible&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<h3>Chemical and physical treatments for maximum performance<\/h3>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]<span style=\"font-weight: 400;\">When the required performance is particularly high, surface preparation may include <\/span><b>specific treatments<\/b><span style=\"font-weight: 400;\">. <\/span>[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_row_inner column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; text_align=&#8221;left&#8221; row_position=&#8221;default&#8221; row_position_tablet=&#8221;inherit&#8221; row_position_phone=&#8221;inherit&#8221; overflow=&#8221;visible&#8221; pointer_events=&#8221;all&#8221; el_id=&#8221;7&#8243;][vc_column_inner column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; overflow=&#8221;visible&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<h4><b>Treatments for metals<\/b><\/h4>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]<b>Acid etching<\/b><span style=\"font-weight: 400;\">: removes the <\/span><b>oxidized layers <\/b><span style=\"font-weight: 400;\">and forms a <\/span><b>surface that is chemically compatible <\/b><span style=\"font-weight: 400;\">with the<\/span><b>adhesive<\/b><span style=\"font-weight: 400;\">. The acids used vary according to the metal:  <\/span><b>chromic acid <\/b><span style=\"font-weight: 400;\">for aluminum, <\/span><b>sulfuric acid <\/b><span style=\"font-weight: 400;\">for stainless steel, <\/span><b>nitric acid <\/b><span style=\"font-weight: 400;\">for copper. <\/span> <\/p>\n<p><b>Anodizing<\/b><span style=\"font-weight: 400;\">: widely used in <\/span><b>aerospace field<\/b><span style=\"font-weight: 400;\">, deposits a <\/span><b>porous oxide layer <\/b><span style=\"font-weight: 400;\">that promotes the <\/span><b>penetration of the adhesive or primer<\/b><span style=\"font-weight: 400;\">. To obtain a  <\/span><b>good adhesion<\/b><span style=\"font-weight: 400;\">, the layer should not <\/span><b>be sealed<\/b><span style=\"font-weight: 400;\">. <\/span> <\/p>\n<p><b>Application of primer<\/b><span style=\"font-weight: 400;\">: used for metals, glass and ceramics. The primer, often similar to adhesive but more fluid,   <\/span><b>Easily wets the surface  <\/b><span style=\"font-weight: 400;\">and creates a strong bond after curing. It is essential to adhere to application times and wash surfaces with   <\/span><b>deionized water <\/b><span style=\"font-weight: 400;\">after treatment. <\/span>[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_row_inner column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; text_align=&#8221;left&#8221; row_position=&#8221;default&#8221; row_position_tablet=&#8221;inherit&#8221; row_position_phone=&#8221;inherit&#8221; overflow=&#8221;visible&#8221; pointer_events=&#8221;all&#8221; el_id=&#8221;8&#8243;][vc_column_inner column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; overflow=&#8221;visible&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<h4><b>Treatments for plastics and composites  <\/b><\/h4>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]<span style=\"font-weight: 400;\">The type of <\/span><b>polymer <\/b><span style=\"font-weight: 400;\">and the <\/span><b>production process <\/b><span style=\"font-weight: 400;\">can influence the<\/span><b>effectiveness of physical treatments<\/b><span style=\"font-weight: 400;\">: <\/span> <\/p>\n<ul>\n<li><b>Low-pressure plasma<\/b><span style=\"font-weight: 400;\">: increases the<\/span><b>surface energy <\/b><span style=\"font-weight: 400;\">and allows for<\/span><b>excellent wettability<\/b><span style=\"font-weight: 400;\">. Suitable for  <\/span><b>small parts <\/b><span style=\"font-weight: 400;\">o <\/span><b>hard-to-reach areas<\/b><span style=\"font-weight: 400;\">. <\/span> <\/li>\n<li><b>Atmospheric plasma<\/b><span style=\"font-weight: 400;\">: applied in <\/span><b>ambient air<\/b><span style=\"font-weight: 400;\">, ideal for <\/span><b>larger surfaces<\/b><span style=\"font-weight: 400;\">. <\/span> <\/li>\n<li><b>Flame treatment<\/b><span style=\"font-weight: 400;\">: oxidizes the <\/span><b>surface layer<\/b><span style=\"font-weight: 400;\">, increases the <\/span><b>polarity <\/b><span style=\"font-weight: 400;\">and improves the <\/span><b>wettability<\/b><span style=\"font-weight: 400;\">. <\/span> <\/li>\n<li><b>Crown treatment<\/b><span style=\"font-weight: 400;\">: generates <\/span><b>oxygen and ozone<\/b><span style=\"font-weight: 400;\">, activating the <\/span><a href=\"https:\/\/mascherpa.it\/guida-prodotto\/adesivi-industriali\/superfici\/plastica\/\"><b>plastic surface<\/b><\/a><span style=\"font-weight: 400;\"><a href=\"https:\/\/mascherpa.it\/guida-prodotto\/adesivi-industriali\/superfici\/plastica\/\">.<\/a> <\/span> <\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">All of these treatments have <\/span><b>limited stability over time<\/b><span style=\"font-weight: 400;\">, varying from a few hours to a few weeks depending on the material. <\/span>[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_row_inner column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; text_align=&#8221;left&#8221; row_position=&#8221;default&#8221; row_position_tablet=&#8221;inherit&#8221; row_position_phone=&#8221;inherit&#8221; overflow=&#8221;visible&#8221; pointer_events=&#8221;all&#8221; el_id=&#8221;9&#8243;][vc_column_inner column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; overflow=&#8221;visible&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<h2>Efficacy as a function of surface preparation methods<\/h2>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]<span style=\"font-weight: 400;\">Depending on the methods that are used for surface preparation the adhesive bonding will achieve more or less effective results:  <\/span><\/p>\n<ul>\n<li><span style=\"font-weight: 400;\">degreasing only: <\/span><b>good<\/b><span style=\"font-weight: 400;\">; <\/span> <\/li>\n<li><span style=\"font-weight: 400;\">degreasing + abrasion: <\/span><b>very good<\/b><span style=\"font-weight: 400;\">; <\/span> <\/li>\n<li><span style=\"font-weight: 400;\">degreasing + chemical treatment: <\/span><b>excellent <\/b> <\/li>\n<\/ul>\n[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_row_inner column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; text_align=&#8221;left&#8221; row_position=&#8221;default&#8221; row_position_tablet=&#8221;inherit&#8221; row_position_phone=&#8221;inherit&#8221; overflow=&#8221;visible&#8221; pointer_events=&#8221;all&#8221; el_id=&#8221;10&#8243;][vc_column_inner column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; overflow=&#8221;visible&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<h2>The water drop test<\/h2>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]<span style=\"font-weight: 400;\">A simple and straightforward test to assess the quality of pretreatment is the <\/span><b>water drop test<\/b><span style=\"font-weight: 400;\">. <\/span> <\/p>\n<p><span style=\"font-weight: 400;\">If a few drops of distilled water spread evenly over the surface, or if the water film does not break into droplets, the surface can be considered sufficiently clean.  <\/span><\/p>\n<p><span style=\"font-weight: 400;\">A <\/span><b>uniform wetting <\/b><span style=\"font-weight: 400;\">is a sign of good preparation: the same surface will also likely be wetted by the adhesive. <\/span> <\/p>\n<p><span style=\"font-weight: 400;\">It should be considered, however, that some plastics, even when clean, <\/span><b>are not wetted by water <\/b><span style=\"font-weight: 400;\">but may still be perfectly compatible with the adhesive used. <\/span> <\/p>\n<p><span style=\"font-weight: 400;\">The water drop test thus provides a useful qualitative indication, <\/span><b>especially for metals<\/b><span style=\"font-weight: 400;\">, but it must be interpreted in the context of the material to be bonded and the type of adhesive. <\/span>[\/vc_column_text][image_with_animation image_url=&#8221;34409&#8243; image_size=&#8221;full&#8221; max_width=&#8221;100%&#8221; max_width_mobile=&#8221;default&#8221; animation_type=&#8221;entrance&#8221; animation=&#8221;None&#8221; animation_movement_type=&#8221;transform_y&#8221; hover_animation=&#8221;none&#8221; alignment=&#8221;&#8221; border_radius=&#8221;none&#8221; box_shadow=&#8221;none&#8221; image_loading=&#8221;default&#8221;][\/vc_column_inner][\/vc_row_inner][vc_row_inner column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; text_align=&#8221;left&#8221; row_position=&#8221;default&#8221; row_position_tablet=&#8221;inherit&#8221; row_position_phone=&#8221;inherit&#8221; overflow=&#8221;visible&#8221; pointer_events=&#8221;all&#8221; el_id=&#8221;11&#8243;][vc_column_inner column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; overflow=&#8221;visible&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<h2><b>The importance of surface preparation for bonding  <\/b><\/h2>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]<span style=\"font-weight: 400;\">The <\/span><b>quality of a structural bonding <\/b><span style=\"font-weight: 400;\">does not depend only on the <\/span><b>choice of adhesive<\/b><span style=\"font-weight: 400;\">, but especially on the <\/span><b>condition of the surface <\/b><span style=\"font-weight: 400;\">on which it acts. <\/span> <\/p>\n<p><b>Degreasing<\/b><span style=\"font-weight: 400;\">,  <\/span><b>abrasion  <\/b><span style=\"font-weight: 400;\">e  <\/span><b>chemical pretreatments  <\/b><span style=\"font-weight: 400;\">o  <\/span><b>physicists  <\/b><span style=\"font-weight: 400;\">are not incidental steps: they are  <\/span><b>the heart of the bonding process<\/b><span style=\"font-weight: 400;\">, what guarantees the  <\/span><b>resistance<\/b><span style=\"font-weight: 400;\">, the  <\/span><b>durability  <\/b><span style=\"font-weight: 400;\">and the<\/span><b>reliability  <\/b><span style=\"font-weight: 400;\">Of the bond over time.  <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Adhesives <\/span><b>ARALDITE\u00ae <\/b><span style=\"font-weight: 400;\">represent the ideal solution for those who require high performance, but it is the correct surface preparation that transforms a good bond into a structural connection capable of lasting. <\/span> <\/p>\n<p><span style=\"font-weight: 400;\">For more information about <\/span><b>surface preparation <\/b><span style=\"font-weight: 400;\">methods for bonding with <\/span><b>industrial adhesives<\/b><strong>, <a href=\"https:\/\/mascherpa.it\/en\/contact\/\">contact <\/a><\/strong><span style=\"font-weight: 400;\">our Mascherpa experts.<\/span>[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row]\n","protected":false},"excerpt":{"rendered":"<p><a href=\"https:\/\/mascherpa.it\/en\/blog\/the-surface-preparation\/\" class=\"excerpt\">[vc_row type=&#8221;in_container&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; bg_color=&#8221;#F7F7F7&#8243; scene_position=&#8221;center&#8221; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221; row_border_radius=&#8221;15px&#8221; row_border_radius_applies=&#8221;bg&#8221; overflow=&#8221;visible&#8221; overlay_strength=&#8221;0.3&#8243; gradient_direction=&#8221;left_to_right&#8221; shape_divider_position=&#8221;bottom&#8221; bg_image_animation=&#8221;none&#8221; gradient_type=&#8221;default&#8221; shape_type=&#8221;&#8221;][vc_column column_padding=&#8221;padding-3-percent&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; column_position=&#8221;default&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221; column_padding_type=&#8221;default&#8221; gradient_type=&#8221;default&#8221;][vc_row_inner column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221;&#8230;<\/a><\/p>\n","protected":false},"author":4,"featured_media":33024,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3254,5581,3323],"tags":[3432],"class_list":{"0":"post-22108","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-araldite-en","8":"category-industrial-adhesives-en","9":"category-structural-adhesives","10":"tag-stickers"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Surface Preparation: Guide for Industrial Adhesives | Mascherpa s.p.a<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mascherpa.it\/en\/blog\/the-surface-preparation\/\" \/>\n<meta property=\"og:locale\" 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