Coating / Elastomer Type Classifications
Click here for a short video demonstrating the application of polyurea
(requires Windows Media Player)
A pure polyurea coating / elastomer is derived from the reaction product of a polyisocyanate component and an amine-terminated resin blend.
For reference purposes, a polyurethane / polyurea hybrid coating / elastomer is the reaction product of a polyisocyanate component and a resin blend component. The resin blend may be made up of blends of amine-terminated and / or hydroxyl-terminated polymer resins.
A polyurea coating/elastomer is that derived from the reaction product of an isocyanate component and a resin blend component. The isocyanate can be aromatic or aliphatic in nature. It can be monomer, polymer, or any variant reaction of isocyanates, quasi-prepolymer or a prepolymore. The prepolymer, or quasi-prepolymer, can be made of an amine-terminated polymer resin, or a hydroxyl-terminated polymer resin.
The Resin blend must be made up of amine-terminated polymer resins, and/or amineterminated chain extenders. The amine-terminated polymer resins will not have any intentional hydroxyl moieties. Any hydroxyls are the result of incomplete conversion to the amine-terminated polymer resins. The resin blend may also contain additives, or non-primary components. These additives may contain hydroxyls, such as pre-dispersed pigments in a polyol carrier. Normally, the resin blend will not contain a catalyst(s).