| abstract |
[Problem] To provide: a sponge-forming liquid silicone rubber composition that maintains a stable emulsified state, that can form a low-density silicone rubber sponge having a uniform and fine open-cell foam structure even when a coating or molding method involving shearing force and thin layer formation is used, that is less likely to contract during curing, and that forms a silicone rubber sponge having a density close to the density designed on the basis of water content; and a low-density silicone rubber sponge material using the sponge-forming liquid silicone rubber composition. [Solution] Provided are: a sponge-forming liquid silicone rubber composition characterized by comprising (A) an alkenyl group-containing organopolysiloxane, (B) an organopolysiloxane having a silicon atom-bonded hydrogen atom, (C) a mixture of water and an inorganic thickener, (D) an emulsifier, and (E) a hydrosilylation reaction catalyst, the contained amount of the component (C) in the entire composition being 70 mass% or more; and the use thereof. |