Perfect adhesion on multi-substrates and low polarity surface is possible
The demand for adhesion to several different substrates is a common request in the market. However it is very difficult to achieve, particularly when non-polar, low energy substrates such as polyolefins and rubbers are used. The need to bond these different materials is increasingly demanded since the use of plastic parts has become more prevalent in many end applications, such as in automotive for weight saving purpose. Adhesive are also increasingly used to replace welding and mechanical joints.
You can overcome these challenges by using the Croda dimer technology.
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Adhesives & sealants product guide
Pripol dimer structure
The branched structure, and the hydrocarbon character, impart the unique combination of features of substrate wetting and affinity to low polar surfaces, such as plastics.
These characteristics 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 contains dimer units.
A bio-based dimer diamine building block that offers excellent flexibility and chemical resistance in epoxy and polyurea formulations. (ISCC*)
Low-viscous dimer diamine building block designed for use with polyamides, offering high flexibility, moisture repellency and improved adhesion to plastic.(ISCC*)
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. (ISCC*)
A low viscous polyester polyol building block (MW 1000) that provides hydrophobicity and good flexibility to PU coatings, adhesives, sealants and elastomers even at low temperatures. (ISCC*)
A versatile amorphous polyester polyol (MW 2000) offering superior chemical, oxidative and UV resistance to polyurethane systems. (ISCC*)
A liquid all-round polyol (MW 2000) for polyurethane adhesives & coatings, bringing good adhesion to a wide range of substrates. Very suitable for lightweight applications and furniture. (ISCC*)
Semi-crystalline polyol (MW 1000) offering excellent wetting of rigid and fibrous substrates providing hardness, flexibility and good adhesion. (ISCC*)
Semi-crystalline polyester polyol (MW 3000) with excellent durability, strength and adhesion to various substrates. (ISCC*)
Amorphous polyester polyol (MW 1700) that provides excellent hydrolytic stability and water repellency to cross-linked polyurethane adhesives, foams and sealants. (ISCC*)
A good starting point, Priplast 3192 is semi-crystalline polyol building block (MW 2000) that offers excellent hydrolytic stability and good mechanical properties. (ISCC*)
A 100% Bio-based polyester polyol (MW 2000) providing extreme hydrophobicity, excellent colour and enhanced durability to polyurethane systems. (ISCC*)
A 100% bio-based polyol (MW 2000) providing excellent water resistance, surface hardness and mechanical properties to PU coatings, adhesives, PUD's and elastomers. (ISCC*)
A distilled & hydrogenated dimer acid, providing good colour and colour stability in addition to water repellency, flexibility and thermo-oxidative stability. (ISCC*)
A distilled dimer acid building block with high difunctionality, bringing high toughness to epoxy, polyester and polyamide materials. Also provides good flexibility, excellent hydrolytically stability...
A distilled dimer acid with high difunctionality, offering water repellency, flexibility and excellent hydrolysis and chemical resistance. (ISCC*)
A dimer acid that brings flexibility, adhesion, pigment wetting and compatibility.
A low viscous, 100% bio-based dimer diol offering enhanced flexibility and good moisture barrier protection for polyurethane and polyester applications.