Polyurea spray elastomer material, by (referred to as group A) with the amide group (referred to as the R group) by the reaction of the isocyanate component. The isocyanate can be either aromatic, aliphatic. Group A which can be monomer, polymer, isocyanate derivatives and prepolymers and semi-prepolymers. Prepolymers and semi-prepolymers have by-side amino or terminal hydroxyl compounds and isocyanate reaction system. Which the R group must be composed by the end of the amino resin and amine terminated chain extender, in the end amino resin, shall not contain any hydroxyl components and catalysts, but can contain additives to facilitate pigment dispersion. Polyurea spray the reaction of these two substances as a new type of coating has many excellent features. 
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