MATERIAL DE BASE PARA FORMACAO DE COMPOSICAO DE BORRACHA DE SILICONE VULCANIZAVEIS EM TEMPERATURA AMBIENTE (VTA), COMPOSICAO RESULTANTE E PROCESSO DE FORMACAO DO MATERIAL DE OM USO DA DITA COMPOSICAO

摘要

A room temperature vulcanizable silicone rubber composition with sag-control wherein the base material or mixture of ingredients for forming the composition comprises a silanol end-stopped diorganopolysiloxane polymer, at least 3 parts of a fumed silica filler and as the sag-control ingredient, from 0.03 to 2.0 parts of a polyether. As a work-like extending additive in the case of a two-part room temperature vulcanizable silicone rubber composition, there may be added to the basic ingredients of the composition a low viscosity silanol end-stopped polysiloxane.