| abstract |
(57) [Summary] [Problem] To form a cured sealing material surface having a low surface glossiness, a low gloss, and a high weather resistance stably even after storage without impairing basic performance required for the sealing material. To provide a highly weatherable matte sealant composition that can be used. SOLUTION: (A) a compound which reacts with a crosslinkable silyl group-containing organic polymer, (B) a photocurable compound and (C) water to form a primary and / or secondary amine, and Further, there is provided a highly weatherable matte sealing material composition comprising (D) a crosslinking catalyst, (E) an antioxidant and / or an ultraviolet absorber, (F) an additive, and a balloon having an average particle diameter of 100 μm or more. |