Insulator coating, useful e.g. as thermal insulation material, comprises calcium sulfate dihydrate, calcium carbonate, finely divided silica and absorbent, alkaline silicate in aqueous solution, amphoteric surfactant and organic polymer

摘要

Fire proof insulator coating (I), comprises: calcium sulfate dihydrate or plaster (40-80%); calcium carbonate (5-25%); finely divided silica and absorbent (5-20%); alkaline silicate in aqueous solution (5-20%); amphoteric surfactant (0.5-3%) miscible with alkaline silicates, under the form an aqueous solution containing a concentration of active ingredients of 1-60%; and an organic polymer (0.5-3%) hydrosoluble miscible to the sodium silicate, in the form of aqueous solution containing a concentration of active ingredients of 1-60%. Fire proof insulator coating (I), comprises: calcium sulfate dihydrate or plaster (40-80%); calcium carbonate, which is in natural or synthetic form (5-25%); finely divided silica and absorbent, which is in natural or synthetic form (5-20%); alkaline silicate in aqueous solution (5-20%); amphoteric surfactant (0.5-3%) miscible with the alkaline silicates, under the form an aqueous solution containing a concentration of active ingredients of 1-60%; and an organic polymer (0.5 to 3%) hydrosoluble miscible to the sodium silicate, in the form of aqueous solution containing a concentration of active ingredients of 1-60%. An independent claim is included for a method of protecting against fire comprising tempering (I) with water to obtain a projectable coating and the mixing rate, defined by the weight ratio of mass of solid composition/mass of water of 1-3.5.