摘要 |
A flame insulative heat vulcanizable silicone rubber composition or two-part room temperature vulcanizable silicone rubber composition comprising or having the standard ingredients of such compositions in which the flame insulative additive consists of, in addition to the inert filler, from 25 to 150 parts by weight of ground glass and more preferably, glass frits. In a more preferable embodiment, in addition to the ground glass, there is utilized from 5 to 50 parts of glass fibers and more preferably, milled glass fibers having an average size varying anywhere from 0.01 to 0.5 inches. |