Kömmerling™: Polyurethane and MS adhesives and sealants

Key features of Körapop™ sealants

• Single- and two-component versions: the range includes 1K and 2K formulations, such as the 225-2K two-component version that offershigh flexibility and customizable pot-life times via boosters.
• Elasticity and ability to absorb structural movements: some formulations exceed 500 percent elongation and remain elastic even under cyclic movements or thermal expansion.
• Environmental resistance: high performance against UV, moisture, aging and weathering. Some products tolerate temperature ranges from -60 °C up to +90 °C or even +120 °C in short periods.
• Multi-substrate adhesion and aesthetic finishes: excellent anchorage on metal, glass, wood, mineral materials and plastics. Clear versions certified for food contact(ISEGA) and colored solutions for aesthetic requirements available.
• Easy application on vertical surfaces: dense consistency prevents dripping and allows safe work with rapid formation of protective skin.
• Paint and industrial process compatibility: many versions are compatible with “wet-on-wet” finishes and paintable within certain time frames.

Because of these characteristics, KörapopTM is ideal for applications where a combination of high technical performance and aclean aesthetic result is required, such as in the automotive, marine, and light construction industries.

Key features of Körapur™ adhesives

• High internal cohesion and mechanical strength: the products offer high elastic moduli, low permanent deformation and good tensile and shear strength.
• Modular timing: the two-component versions allow you to choose the pot life time (6, 15, 30 minutes) depending on the production process.
• Wide temperature resistance: capable of operating between -40 °C and +120 °C (short exposures) while maintaining adhesion and elasticity.
• Adhesion to complex surfaces: excellent bonding to metals, plastics, painted surfaces and composite materials, often without the use of primer.
• Vibration and shock tolerance: due tohigh elasticity and internal damping, maintains bond integrity under dynamic loads.
• Special formulations for marine and severe applications: marine versions with IMO certifications, characterized by elasticity, no casting, and resistance to moisture, UV and extreme temperatures (-40 °C/+90 °C).
• Food-compatible and multi-purpose formulations: for example, Körapur 125 is a multi-purpose (non-staining), weather-resistant adhesive compatible with food contact.

This performance makes KörapurTM reliable for uses in technical construction, the automotive industry, composite structures and contexts where safety, long-term strength and mechanical stability are crucial.

Industrial chillers (store refrigerators)

In the construction of industrial and commercial chillers, Körapop™ and Körapur™ solutions ensure reliable, hygienic bonding and sealing thatmeets the standards required in the food industry.

Körapop™ formulations, based on MS polymers, offer excellent adhesion on glass and metal, resistance to mold and mildew, and properties certified for indirect food contact.
They are ideal for applications such as glass-to-metal bonding and corner and joint sealing, where ensuring durability and safety in food storage environments is critical.

By combining the two ranges, Kömmerling™ helps to improve the efficiency and reliability of refrigeration systems, reducing the risk of leakage and ensuring long operational life.

Transportation and automotive

In the transportation, automotive, rail, and marine industries, Kömmerling™ adhesives offer performance that responds to particularly severe operating conditions
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Körapur™ polyurethane adhesives ensurestructural bonding that is resistant to vibration, shock , and mechanical stress.
This feature is essential for the production of industrial vehicles, buses, RVs , and specialty vehicles, where structural safety must be ensured throughout the life cycle of the vehicle.

For marine applications, specific formulations in the Körapur™ range provide resistance to salt water andmoisture, maintainingconsistent performance even in particularly aggressive marine environments.
At the same time, Körapop™ sealants are used for elastic gaskets andaesthetic finishes , offering versatility and reliability.

Heat exchangers (heat exchangers)

In heat exchangers, Körapop™ and Körapur™ solutions meet the needs of bonding and sealing subjected to vibration, thermal cycling and high humidity conditions.

Körapop™ formulations, based on MS polymers, are used for core, frame, and fin assembly due to their ability to fill joints, cure quickly, and ensure hygienic and durable bonding in accordance with HVAC industry standards.

Körapur™ polyurethane adhesives, on the other hand, are used for potting and protective coating operations, providing corrosion resistance and improving the overall seal of the exchanger. These features ensure long operating life and high efficiency even under severe conditions.

By combining the two ranges, heat exchangers can maintain stable and reliable performance, reducing the risk of leakage and prolonging the service life of systems.

HVAC Industry

In the HVAC (Heating, Ventilation and Air Conditioning) industry, Körapop™ and Körapur™ solutions are designed to meet the highest requirements for efficiency, durability and hygiene.

Körapop™ formulations, due to their elastic nature and compliance with hygienic standards, are used for joint and panel sealing , ensuring durable and strong adhesion in applications that require reliability and speed of processing.
Their ability to provide continuous sealing reduces the risk of air leakage and helps maintain high energy efficiency of systems.

Körapur™ polyurethane adhesives, on the other hand, are used for bonding insulation panels, offering thermal resistance and stability even in conditions of severe weather fluctuations or high humidity. These properties make them particularly suitable for ensuring durability and safety in modern HVAC systems.

With the combination of the two ranges, Körapop™ and Körapur™, Kömmerling™ provides complete solutions for the assembly of HVAC units that are reliable, safe, and meet the most stringent international standards.

Marine industry

The marine industry is one of the most challenging environments for adhesives and sealants due to constant exposure to UV rays, salt water, temperature variations, and extreme weather conditions.
In this context, Körapop™ and Körapur™ solutions are widely used for both exterior and interior applications in modern vessels, providing durability and long operational life.

Körapop™ formulations, with their elasticity and UV stability, are ideal for sealing decks, glazing and exposed joints, offering reliable protection against seepage and deformation.
Their ability to resist twisting and structural movement makes them indispensable for windows, elastic joints and coatings subject to continuous stress conditions.

Körapur™ polyurethane adhesives, on the other hand, are used in applications with higher mechanical loads, such as structural hull-deck bonding, panel fastening and the assembly of components subject to vibration and shock.
Thanks to their strength and ability to handle longer processing times, they ensure high reliability in production processes and greater safety under the most extreme operating conditions.

By combining these two technologies, the Kömmerling™ range helps improve boat durability, joint safety, and corrosion resistance, ensuring consistent performance on both pleasure yachts and large commercial vessels.

Other industries

In addition to the core areas, Kömmerling™ adhesives and sealants are also used in cross-cutting areas such as:

• Architecture and design, for ventilated facades and innovative structures;
• Composites industry, with bonding of sandwich panels and lightweight materials;

The versatility of the range enables it to meet complex needs and support advanced production processes in multiple contexts.