METHOD OF PRODUCTION OF FLAME-RETARDANT COATING Russian patent published in 1995 - IPC

FIELD: construction. SUBSTANCE: metalwork surface is cleaned and coated by concrete spraying with a compound, containing, mass percent: a concentrate of vermiculite ore 7 to 11, waste of expanded polyurethane or expanded polystyrene 5 to 9, asbestos serpentine chrysolite 11 to 15, Portland-cement 8 to 16, pyrophyllite 3 to 5, expanded perlite 3 to 5, and water glass the rest; then a solution of chlorosulfonated polyethylene in organic solvent is applied to the compound layer, the layer being 0.5 mm and more thick. EFFECT: facilitated procedure. 3 dwg, 3 tbl