Silicone rubber sealant composition

摘要: A sealant composition especially useful for porous materials such as wood, concrete and mansonry is provided comprising: (a) a silanol-terminated polysiloxane having molecular weight greater than about 2000; (b) multifunctional silane functional groups which condense with silanol in the presence of atmospheric moisture at room temperature to form cross-linked polymer; (c) nonaqueous volatile solvent non-reactive components (b). The renders said waterproof by coating filling pores material cured silicone rubber product. In preferred embodiment also contains metal-containing curing catalyst or subliming chelating agent an amount sufficient prevent cure storage container prior during use. may comprise adhesion agents, surfactants pigments.