Patent ID: 6309740
Filing Date: 2001-10-30
Classification: B32B,C04B,C09D,C09K,C23C,Y10S,Y10T

Abstract:
A coating system for providing fireproofing protection to a substrate, comprising:an hydratable cementitious fireproofing composition providing as a powder in a container, said composition operative upon the addition of water to be spray-applied as a coating onto a substrate comprised of metal, wood, metal, composite material, glass, or mixture thereof, said fireproofing composition comprising; a cementitious binder in the amount of at least 30% by weight of said fireproofing composition, said binder comprising gypsum Plaster of Paris, Portland cement, aluminous, cement, pozzoalanic cement, or mixture thereof; and said fireproofing composition further comprising at least one light-weight aggregate in the amount of 1-5% by weight selected from the group consisting of expanded vermiculite, perlite, shredded polystyrene, or mixture thereof;an accelerator provided in a container, said accelerator operative to be injected during spray-application of said fireproofing composition at an application site; andan aqueous dispersion provided in a container, of delaminated vermiculite platelets operative to provide an overlying coating over said hydratable cementitious fireproofing composition when said fireproofing composition is spray-applied on to a substrate surface.