... corrosiveness, high elasticity and movement capability, silicone fire-retardant sealant, weatherproof. YA-119 silicone fire-retardant sealantFeatures:1) neutral cure, non-corrosive ... resistant, ozone-resistant, heat and cold resistant.Main Function:1) fire-retardent sealing of windoor and curtain wall.2) fireproof glazing ... : ≥0.6Mpa.6) Movement capability: ±20%. YA-119 silicone fire-retardant sealant