Patent ID: 7001948

Claim:
A polyurea coating layer, which is the reaction product of the following reactants: a. an isocyanate composition comprising isocyanate functional compounds selected from a first set of isocyanate compounds having an average isocyanate functionality of at least about 3 and having an equivalent weight of from about 180 to about 240, said isocyanate composition having an average isocyanate functionality of at least about 2.5; and b. an amine composition comprising a first set of secondary amine functional compounds having an equivalent weight of from about 200 to about 280, and a second set of secondary amine compounds having an equivalent weight of from about 30 to about 180, said amine composition having an average amine functionality of about 1.5 to about 3; said reactants being reacted under conditions such that the coating layer has a Hardness Value of at least about 70 D.