| abstract |
(57) Abstract: A diorganopolysiloxane having a hydroxyl group or a hydrolyzable group bonded to at least two silicon atoms in a molecule is used as a base polymer, and two hydrolyzable groups are formed in one molecule. In the condensation-curable silicone rubber composition containing the above-mentioned silane or a partial hydrolyzate thereof, 2 mol% or more of all the substituents bonded to silicon atoms of the diorganopolysiloxane as the base polymer have 2 or more carbon atoms. A non-staining silicone rubber composition, which is a substituted or unsubstituted monovalent hydrocarbon group. The non-staining silicone rubber composition of the present invention comprises: It has excellent non-staining properties after curing and good sealing properties.Therefore, when used as a coating, filling joints or as a solid gasket, it does not cause contamination of buildings, joints and joints surroundings, and the rubber itself Are also less contaminated and have excellent weather resistance. |