{"id":33934,"date":"2025-06-05T09:18:53","date_gmt":"2025-06-05T09:18:53","guid":{"rendered":"https:\/\/mascherpa.it\/non-categorizzato\/"},"modified":"2025-11-20T18:23:37","modified_gmt":"2025-11-20T18:23:37","slug":"printed-circuit-boards-3-techniques-to-prevent-cobwebbing","status":"publish","type":"post","link":"https:\/\/mascherpa.it\/en\/blog\/printed-circuit-boards-3-techniques-to-prevent-cobwebbing\/","title":{"rendered":"Printed Circuit Boards: 3 Techniques to Prevent Cobwebbing"},"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; 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; gradient_type=&#8221;default&#8221; shape_type=&#8221;&#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\/2&#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;40&#8243;][image_with_animation image_url=&#8221;31121&#8243; image_size=&#8221;full&#8221; max_width=&#8221;custom&#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; max_width_custom=&#8221;200&#8243;][\/vc_column][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\/2&#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][\/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;clip-path&#8221; clip_path_animation_type=&#8221;default&#8221; clip_path_animation_applies=&#8221;default&#8221; clip_path_animation_addon=&#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; column_padding_type=&#8221;default&#8221; gradient_type=&#8221;default&#8221;][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<h2 class=\"p3\">Key points of the article<\/h2>\n[\/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 class=\"p1\"><strong>Cobwebbing<\/strong> manifests as <strong>web-like filaments<\/strong> during the <strong>spray application<\/strong> of <strong>conformal coating<\/strong>, compromising both the <strong>aesthetics<\/strong> and <strong>PCB performance.<\/strong><\/li>\n<li class=\"p1\">The main causes are related to <strong>premature polymerization<\/strong> of the coating due to factors such as <strong>excessive pressure<\/strong>, <strong>highly volatile solvents<\/strong>, and <strong>incorrect valve distance.<\/strong><\/li>\n<li class=\"p1\">To prevent <strong>cobwebbing<\/strong>, it is essential to properly adjust the <strong>atomization pressure<\/strong>, <strong>valve height<\/strong>, and <strong>coating formulation<\/strong> with the addition of <strong>thinners.<\/strong><\/li>\n<li class=\"p1\">The selection of <strong>solvents and parameters<\/strong> must comply with regulations such as <strong>REACH and RoHS<\/strong> and consider the company&#8217;s <strong>production and environmental objectives<\/strong>.<\/li>\n<li class=\"p1\"><strong>Mascherpa<\/strong> provides technical support and targeted solutions such as <strong>DOWSIL conformal coatings<\/strong> to ensure <strong>optimal protection<\/strong> of printed circuit boards even in complex environments.<\/li>\n<\/ul>\n <\/div>[\/vc_column_inner][\/vc_row_inner][nectar_cta btn_style=&#8221;next-section&#8221; btn_type=&#8221;down-arrow-bounce&#8221; next_section_color=&#8221;#3452ff&#8221; next_section_down_arrow_animation=&#8221;default&#8221; next_section_shadow=&#8221;none&#8221; alignment=&#8221;right&#8221; alignment_tablet=&#8221;default&#8221; alignment_phone=&#8221;default&#8221; display_tablet=&#8221;inherit&#8221; display_phone=&#8221;inherit&#8221; bottom_position_desktop=&#8221;-150&#8243; margin_bottom=&#8221;-60&#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; 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; gradient_type=&#8221;default&#8221; shape_type=&#8221;&#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;]\n<p class=\"p2\">In the <span class=\"s2\"><strong>printed circuit board<\/strong><\/span> production process, <a href=\"https:\/\/mascherpa.it\/en\/conformal-coating-2\/\"><span class=\"s2\"><strong>conformal coating<\/strong><\/span><\/a> represents a crucial phase for protecting <span class=\"s2\"><strong>electronic boards<\/strong><\/span> from <strong>moisture<\/strong>, <strong>chemical agents<\/strong>, and <strong>environmental contamination<\/strong>. However, despite being <strong>the final<\/strong> step in the production cycle, it is also one of the <strong>most delicate<\/strong> and <strong>error-prone<\/strong>. One of the most frequent defects encountered is the <strong>formation of so-called <\/strong><em><strong>cobwebs<\/strong>, <\/em>a phenomenon also known as <strong><em>cobwebbing<\/em><\/strong>.<\/p>\n<p class=\"p2\">At Mascherpa, with years of experience in <a href=\"https:\/\/mascherpa.it\/en\/product-guide\/product-guide\/electronics\/\"><span class=\"s2\"><strong>electronic protection<\/strong><\/span><\/a> and industrial solutions distribution, we address these types of issues daily with a <strong>technical approach<\/strong> focused on resolution. In this case, with the use of <span class=\"s2\"><strong>Dowsil PCB <a href=\"https:\/\/mascherpa.it\/en\/dowsil-9\/\">conformal coating<\/a><\/strong><\/span>,<\/p>\n[\/vc_column_text][divider line_type=&#8221;No Line&#8221; custom_height=&#8221;20&#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;clip-path&#8221; clip_path_animation_type=&#8221;default&#8221; clip_path_animation_applies=&#8221;default&#8221; clip_path_animation_addon=&#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; column_padding_type=&#8221;default&#8221; gradient_type=&#8221;default&#8221;][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<h2 class=\"p3\">Index<\/h2>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<ul>\n<li><a href=\"#1\">What is cobwebbing in printed circuit boards?<\/a><\/li>\n<li><a href=\"#2\">The main causes of cobweb formation<\/a><\/li>\n<li><a href=\"#3\">Solutions to prevent cobweb formation in printed circuit boards<\/a>\n<ul>\n<li><a href=\"#4\">Reduce atomization pressure<\/a><\/li>\n<li><a href=\"#5\">Adjust valve height<\/a><\/li>\n<li><a href=\"#6\">Add a slower thinner or increase thinner quantity<\/a><\/li>\n<\/ul>\n<\/li>\n<li><a href=\"#7\">Focus on safety and regulations in printed circuit boards<\/a><\/li>\n<li><a href=\"#FAQ\">FAQ<\/a>\n<ul>\n<li><a href=\"#FAQ\">What are printed circuit boards used for?<\/a><\/li>\n<li><a href=\"#FAQ\">What materials are used for electronic boards and printed circuits?<\/a><\/li>\n<li><a href=\"#FAQ\">What are printed circuit boards called?<\/a><\/li>\n<li><a href=\"#FAQ\">How do you clean printed circuit boards?<\/a><\/li>\n<li><a href=\"#FAQ\">What is cobwebbing?<\/a><\/li>\n<\/ul>\n<\/li>\n<li><a href=\"#6\">Eliminating cobwebbing for perfect protection of printed circuit boards<\/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; id=&#8221;1&#8243; 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;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_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<h2>What is Cobwebbing in Printed Circuit Boards?<\/h2>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<p class=\"p2\"><strong>The <em>cobwebbing<\/em><\/strong> is a phenomenon that occurs during the <strong>spray application<\/strong> of <span class=\"s2\"><strong>PCB conformal coating<\/strong><\/span>. It appears as thin filaments, similar to cobwebs, that attach to the highest components of printed circuit boards. These filaments not only compromise the <strong>aesthetics<\/strong> of the <span class=\"s2\"><strong>printed circuit board<\/strong><\/span> but can also lead to <strong>functional problems<\/strong> or <strong>insulation defects<\/strong>.<\/p>\n<p class=\"p2\">This effect occurs when the <strong>conformal coating<\/strong> <strong>dries<\/strong> <strong>too quickly<\/strong> <strong>in the air<\/strong>, before reaching the surface of the <strong>electronic<\/strong><span class=\"s2\"><strong> board<\/strong><\/span>, causing <strong>premature polymerization<\/strong> of the product. The issue is typical of <strong>atomized spraying<\/strong> and very rare with other application methods such as:<\/p>\n<ul>\n<li class=\"p1\"><strong>Dip coating<\/strong><\/li>\n<li class=\"p1\"><strong>Brush application<\/strong><\/li>\n<li class=\"p1\"><strong>PCB encapsulation<\/strong><\/li>\n<\/ul>\n<p class=\"p2\">Therefore, it is crucial to understand the underlying causes of cobwebbing to address it effectively.<\/p>\n[\/vc_column_text][\/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; id=&#8221;2&#8243; 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;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_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<h2>The Main Causes of Cobweb Formation<\/h2>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<p class=\"p2\">When spraying a <span class=\"s2\"><strong>conformal coating on printed circuit boards<\/strong><\/span>, numerous <strong>technical factors<\/strong> come into play. The main <strong>causes of cobwebbing<\/strong> are:<\/p>\n<ul>\n<li class=\"p1\"><span class=\"s1\"><strong>Insufficient or absent thinner<\/strong><\/span>: a formulation that is too <strong>&#8220;thick&#8221;<\/strong> of the conformal coating prevents <strong>uniform application<\/strong> and leads to <strong>premature drying<\/strong>.<\/li>\n<li class=\"p1\"><span class=\"s1\"><strong>Highly volatile solvent<\/strong><\/span>: some solvents <strong>evaporate<\/strong> so quickly that they <strong>don&#8217;t allow the droplet<\/strong> to <strong>reach<\/strong> the <strong>printed circuit board<\/strong> surface.<\/li>\n<li class=\"p1\"><span class=\"s1\"><strong>Excessive atomization pressure<\/strong><\/span>: generates <strong>fine atomization<\/strong> that accelerates <strong>polymerization in the air<\/strong>.<\/li>\n<li class=\"p1\"><strong>Excessive valve distance from the substrate<\/strong><span class=\"s1\">: the spray dries before reaching the <\/span><strong>printed circuit board<\/strong><span class=\"s1\">.<\/span><\/li>\n<\/ul>\n<p class=\"p2\">These factors must be carefully evaluated to find the right balance between <strong>performance, quality, and productivity<\/strong>.<\/p>\n[\/vc_column_text][\/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;][image_with_animation image_url=&#8221;31686&#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;20px&#8221; box_shadow=&#8221;none&#8221; image_loading=&#8221;default&#8221;][\/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; id=&#8221;3&#8243; 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;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_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<h2>Solutions to Prevent Cobweb Formation in Printed Circuit Boards<\/h2>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]To prevent cobweb formation when applying conformal coating to printed circuit boards, it is essential to pay attention to 3 particular processes that can make a significant difference during application:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>Reduce atomization pressure<\/strong><\/li>\n<li><strong>Adjust valve height<\/strong><\/li>\n<li><strong>Add a slower thinner or increase thinner quantity<\/strong><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n[\/vc_column_text][\/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; id=&#8221;4&#8243; 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;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_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<h3>Reduce Atomization Pressure<\/h3>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<p class=\"p2\">The first step to eliminate cobwebs is to adjust the <span class=\"s2\"><strong>air pressure<\/strong><\/span> used in the <strong>atomization process<\/strong>. <strong>Excessive pressure<\/strong> can effectively <strong>&#8220;cook&#8221;<\/strong> <strong>the solvent<\/strong> present in <strong>the mixture<\/strong>, promoting <strong>evaporation in the air<\/strong> and <strong>the formation of typical filaments<\/strong>.<\/p>\n<p class=\"p2\">It is recommended to start the <strong>configuration process<\/strong> by setting the <strong>atomization pressure<\/strong> to the <strong>lowest possible value<\/strong>. Only then, <strong>gradually increase it<\/strong> until achieving a <strong>uniform spray pattern<\/strong>. If <strong>cobwebbing<\/strong> occurs, <strong>the pressure is considered too high<\/strong>.<\/p>\n[\/vc_column_text][\/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; id=&#8221;5&#8243; 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;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_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<h3>Adjust Valve Height<\/h3>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<p class=\"p2\">If cobwebs continue to appear even with low pressure, the problem might be <span class=\"s2\"><strong>the spray valve height<\/strong><\/span> relative to the <span class=\"s2\"><strong>PCB substrate<\/strong><\/span>.<\/p>\n<p class=\"p2\">When <strong>the valve is too far<\/strong> from the <strong>printed circuit board<\/strong> surface, the <strong>atomized particles<\/strong> of the coating <strong>evaporate<\/strong> <strong>partially<\/strong> or <strong>completely<\/strong> before contact, causing filament formation in the air.<\/p>\n<p class=\"p2\">It is necessary to <strong>program the spray head<\/strong> to adapt to the <span class=\"s2\"><strong>electronic board<\/strong><\/span> topography, following <strong>the contours<\/strong> and <strong>lowering<\/strong> over <strong>lower components<\/strong>. Each <strong>height variation<\/strong> must be studied in combination with <strong>pressure parameters<\/strong> to ensure <strong>smooth and uniform deposition<\/strong>.<\/p>\n[\/vc_column_text][\/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; id=&#8221;6&#8243; 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;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_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<h3>Add a Slower Thinner or Increase Thinner Quantity<\/h3>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<p class=\"p2\">If the two previous adjustments are not sufficient, you can modify the <strong>conformal coating composition<\/strong>. The <span class=\"s2\"><strong>conformal coating<\/strong><\/span> must be sufficiently <strong>fluid<\/strong> to ensure <strong>continuous application<\/strong> and be <strong>defect-free<\/strong>, without drying too quickly.<\/p>\n<p class=\"p2\">The two main options are:<\/p>\n<ul>\n<li class=\"p1\"><strong>Increase thinner quantity<\/strong><\/li>\n<li class=\"p1\"><strong>Replace the thinner with a slower-evaporating one<\/strong><\/li>\n<\/ul>\n<p class=\"p2\">These measures <strong>slow down the<\/strong> <strong>drying process<\/strong> and prevent filament formation in the air.<\/p>\n<p class=\"p2\">Mascherpa offers a range of <span class=\"s2\"><strong>PCB conformal coating solvents<\/strong><\/span> designed to meet <strong>specific process requirements<\/strong>, including considerations for <strong>sustainability<\/strong> and <strong>regulatory compliance<\/strong>.<\/p>\n[\/vc_column_text][\/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; id=&#8221;7&#8243; 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;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_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<h2>Focus on Safety and Regulations in Printed Circuit Boards<\/h2>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<p class=\"p2\">The adoption of different <strong>thinners or solvents<\/strong> must always consider <strong>regulatory constraints<\/strong> (such as <strong>REACH<\/strong> and <strong>RoHS<\/strong>) and <strong>production objectives<\/strong> (such as line speed). For example, <strong>aromatic solvents<\/strong> offer high performance but may be subject to <strong>increasingly stringent environmental restrictions<\/strong>.<\/p>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=&#8221;full_width_background&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; equal_height=&#8221;yes&#8221; content_placement=&#8221;middle&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; scene_position=&#8221;center&#8221; top_padding=&#8221;30px&#8221; bottom_padding=&#8221;50px&#8221; constrain_group_2=&#8221;yes&#8221; constrain_group_4=&#8221;yes&#8221; constrain_group_6=&#8221;yes&#8221; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221; row_border_radius=&#8221;none&#8221; row_border_radius_applies=&#8221;bg&#8221; zindex=&#8221;10&#8243; overflow=&#8221;visible&#8221; id=&#8221;FAQ&#8221; advanced_gradient_angle=&#8221;0&#8243; overlay_strength=&#8221;0.8&#8243; gradient_direction=&#8221;left_to_right&#8221; shape_divider_position=&#8221;bottom&#8221; bg_image_animation=&#8221;none&#8221; parallax_bg=&#8221;true&#8221; parallax_bg_speed=&#8221;fast&#8221; shape_type=&#8221;&#8221; gradient_type=&#8221;default&#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;right&#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; advanced_gradient_angle=&#8221;0&#8243; 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; gradient_type=&#8221;default&#8221; column_padding_type=&#8221;default&#8221;][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<h2>FAQ<\/h2>\n[\/vc_column_text][toggles style=&#8221;minimal&#8221; accordion=&#8221;true&#8221; accordion_starting_functionality=&#8221;default&#8221;][toggle color=&#8221;Default&#8221; heading_tag=&#8221;h3&#8243; heading_tag_functionality=&#8221;default&#8221; title=&#8221;What are Printed Circuit Boards Used for?&#8221;][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]<strong>Printed circuit boards<\/strong> serve to connect and provide <strong>electrical<\/strong> and mechanical support for <strong>electronic components<\/strong> through <strong>conductive tracks<\/strong>, enabling the operation of <strong>electrical and electronic devices.<\/strong>[\/vc_column_text][nectar_cta btn_style=&#8221;arrow-animation&#8221; heading_tag=&#8221;h4&#8243; button_color=&#8221;default&#8221; text_color=&#8221;#3452ff&#8221; button_border_thickness=&#8221;0px&#8221; link_type=&#8221;regular&#8221; alignment=&#8221;left&#8221; alignment_tablet=&#8221;default&#8221; alignment_phone=&#8221;default&#8221; display=&#8221;block&#8221; display_tablet=&#8221;inherit&#8221; display_phone=&#8221;inherit&#8221; link_text=&#8221;Ask the expert for more information&#8221; font_size_desktop=&#8221;15&#8243; url=&#8221;#form&#8221;][\/toggle][toggle color=&#8221;Default&#8221; heading_tag=&#8221;h3&#8243; heading_tag_functionality=&#8221;default&#8221; title=&#8221;What Materials are Used for Electronic Boards and Printed Circuits?&#8221;][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]<strong>PCB circuit boards<\/strong> typically consist of an <strong>insulating substrate<\/strong> (such as FR-4 or fiberglass) and <strong>copper conductive layers<\/strong>; they can be covered with <strong>conformal coating<\/strong> for protection against <strong>moisture and contaminants<\/strong>.[\/vc_column_text][nectar_cta btn_style=&#8221;arrow-animation&#8221; heading_tag=&#8221;h4&#8243; button_color=&#8221;default&#8221; text_color=&#8221;#3452ff&#8221; button_border_thickness=&#8221;0px&#8221; link_type=&#8221;regular&#8221; alignment=&#8221;left&#8221; alignment_tablet=&#8221;default&#8221; alignment_phone=&#8221;default&#8221; display=&#8221;block&#8221; display_tablet=&#8221;inherit&#8221; display_phone=&#8221;inherit&#8221; link_text=&#8221;Ask the expert for more information&#8221; font_size_desktop=&#8221;15&#8243; url=&#8221;#form&#8221;][\/toggle][toggle color=&#8221;Default&#8221; heading_tag=&#8221;h3&#8243; heading_tag_functionality=&#8221;default&#8221; title=&#8221;What are Printed Circuit Boards Called?&#8221;][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]They are commonly called <strong>PCB<\/strong>, which stands for <strong><em>Printed Circuit Board<\/em>,<\/strong> or <strong>printed circuit boards<\/strong>.[\/vc_column_text][nectar_cta btn_style=&#8221;arrow-animation&#8221; heading_tag=&#8221;h4&#8243; button_color=&#8221;default&#8221; text_color=&#8221;#3452ff&#8221; button_border_thickness=&#8221;0px&#8221; link_type=&#8221;regular&#8221; alignment=&#8221;left&#8221; alignment_tablet=&#8221;default&#8221; alignment_phone=&#8221;default&#8221; display=&#8221;block&#8221; display_tablet=&#8221;inherit&#8221; display_phone=&#8221;inherit&#8221; link_text=&#8221;Ask the expert for more information&#8221; font_size_desktop=&#8221;15&#8243; url=&#8221;#form&#8221;][\/toggle][toggle color=&#8221;Default&#8221; heading_tag=&#8221;h3&#8243; heading_tag_functionality=&#8221;default&#8221; title=&#8221;What is Cobwebbing?&#8221;][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]<strong>Cobwebbing<\/strong> is a defect that occurs during the <strong>spray application<\/strong> of <strong>conformal coating<\/strong> and consists of the formation of <strong>thin filaments<\/strong> similar to cobwebs caused by <strong>premature product drying<\/strong>.[\/vc_column_text][nectar_cta btn_style=&#8221;arrow-animation&#8221; heading_tag=&#8221;h4&#8243; button_color=&#8221;default&#8221; text_color=&#8221;#3452ff&#8221; button_border_thickness=&#8221;0px&#8221; link_type=&#8221;regular&#8221; alignment=&#8221;left&#8221; alignment_tablet=&#8221;default&#8221; alignment_phone=&#8221;default&#8221; display=&#8221;block&#8221; display_tablet=&#8221;inherit&#8221; display_phone=&#8221;inherit&#8221; link_text=&#8221;Ask the expert for more information&#8221; font_size_desktop=&#8221;15&#8243; url=&#8221;#form&#8221;][\/toggle][\/toggles][\/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; id=&#8221;8&#8243; 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;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_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<h2>Eliminating Cobwebbing for Perfect Protection of Printed Circuit Boards<\/h2>\n[\/vc_column_text][vc_column_text css=&#8221;&#8221; text_direction=&#8221;default&#8221;]\n<p class=\"p2\"><strong>The <em>cobwebbing<\/em><\/strong> is one of the most common defects in <span class=\"s2\"><strong>PCB conformal coating<\/strong><\/span> processes, but also one of the easiest to resolve when you understand its causes. By properly <strong>adjusting<\/strong> <strong>pressure<\/strong>, <strong>valve height<\/strong>, and <strong>chemical composition<\/strong> of the conformal coating, optimal results can be achieved on any <span class=\"s2\"><strong>electronic PCB<\/strong><\/span>, even in complex production environments.<\/p>\n<p class=\"p2\">Thanks to our experience, we can provide <strong>specialized support for <a href=\"https:\/\/mascherpa.it\/guida-prodotto\/industrie\/industria-elettronica\/\">electronics<\/a><\/strong> and customized solutions for every type of <span class=\"s2\"><strong>printed circuit board<\/strong><\/span>, with a complete range of <strong>coatings<\/strong>.<\/p>\n<p class=\"p2\">Our expertise makes us a reference partner even at technical events such as <a href=\"https:\/\/mascherpa.it\/guida-prodotto\/focus-on-pcb\/\"><span class=\"s2\"><strong>Focus on PCB<\/strong><\/span><\/a>, where we shared our <strong>know-how<\/strong>, <strong>innovation<\/strong>, and <strong>concrete case studies<\/strong>. For more information about the solutions presented at the trade show or strategies to avoid problems with your printed circuit boards, <a href=\"https:\/\/mascherpa.it\/en\/contact\/\">contact our Mascherpa experts<\/a><\/p>\n[\/vc_column_text][\/vc_column][\/vc_row]\n","protected":false},"excerpt":{"rendered":"<p><a href=\"https:\/\/mascherpa.it\/en\/blog\/printed-circuit-boards-3-techniques-to-prevent-cobwebbing\/\" 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; 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; 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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;40&#8243;][image_with_animation image_url=&#8221;31121&#8243; image_size=&#8221;full&#8221; max_width=&#8221;custom&#8221;&#8230;<\/a><\/p>\n","protected":false},"author":4,"featured_media":31687,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3206,5587,5615,3220,6490,6501,2676],"tags":[3499],"class_list":{"0":"post-33934","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-conformal-coating-en","8":"category-dowsil-en-2","9":"category-electronic-protection","10":"category-electronics-en-2","11":"category-fairs-2025","12":"category-focus-on-pcb","13":"category-non-categorizzato","14":"tag-mascherpa-en"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Printed Circuit Boards: 3 Techniques to Prevent Cobwebbing<\/title>\n<meta name=\"description\" content=\"Discover 3 techniques to protect printed circuit boards from cobwebbing during PCB 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