Basic Information

What is Polyurea?

Polyurea is created by the chemical reaction (polyaddition) between a di-isocyanate (NCO-R-NCO) and a polyamine (NH2-R-NH2), without the aid of a catalyst or an additional cross linker. It is usually applied using a spray coating system in a 1:1 mix ratio.

Attention!!!

Polyurethanes and so-called hybrids (a mixed polymer of urea- and urethane groups) are also 1:1 spray systems, but these contain a 3rd component (a catalyst, usually mixed in with the polyol / polyamine component) to reduce reaction time and achieve the necessary cross linking.

In Europe, systems containing a minimum of 70% pure polyurea can be sold under the name “Polyurea”.

100% polyurea can be/is identified with an official label from the PDA Europe or in the technical data sheet as “100% solid polyurea”. Beware of the description “based-on” 100% polyurea – as this can also mean that the system only contains 10% “pure” polyurea.

 

What types of polyurea systems are available?

 

Read more...

 


 

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