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Perfect adhesion on multi-substrates and low polarity surface is possible

The demand for adhesion to several different substrates to be obtained through a versatile formulation is a common request in the market. But it is very difficult to achieve, in particular when non-polar, low energy substrates such as polyolefins and rubbers are used. The need to join these different materials is more and more demanded since the use of plastic parts becomes prevalent in many end applications, such as in automotive for weight saving purpose, and adhesive are replacing welding and mechanical joints.

You can overcome these challenges by using the Croda dimer technology.


Adhesives & sealants product guide 

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Pripol dimer structure

The branched structure and the hydrocarbon character impart the unique mix of substrate wetting and affinity to low polar surfaces, such as plastics.

These performances can be obtained using Pripol dimer diacid, Pripol dimer diols and Priamine dimer diamine in a variety of polymers, such as polyesters, polyamides, epoxies.

For polyurethane based products, we have developed our Priplast polyester polyol range which already contains dimer units.

Find out more about Pripol


Priamine™ 1071


A bio-based dimer diamine building block that offers excellent flexibility and chemical resistance in epoxy and polyurea formulations.

Priamine™ 1074


Low-viscous dimer diamine building block designed for use with polyamides, offering high flexibility, moisture repellency and improved adhesion to plastic.

Priamine™ 1075


A high purity, low-viscous dimer diamine building block with thermo-oxidative stability, high flexibility, moisture repellency and low colour, perfect for engineering plastics applications.

Would you like to further discuss our solutions for multi-substrate adhesion?