COATING PRECURSOR AND METHOD FOR COATING A SUBSTRATE WITH A REFRACTORY LAYER

摘要

The invention concerns a coating precursor comprising a silicone resin and a mineral filler, capable of chemically reacting so as to produce a solid layer on a substrate and into a cohesive refractory after a calcining process. The precursor can optionally further comprise an additive for reducing its viscosity. The invention also concerns a method for coating a specific surface of a substrate with at least a coating precursor of the invention, so as to form a raw layer and in carrying out a heat treatment so as to calcine said raw layer and form a cohesive refractory silicone-containing layer. The invention enables to obtain a protective coating resistant to oxidizing surroundings, liquid metal or solid or molten salt.