Structural Silicone Sealant - High Durability and Elasticity in Structural Glazing Features It's a one-part, neutral-cure silicone sealant — just squeeze and go, no fuss. Won't eat away at the surfaces you're bonding, so your materials stay safe. Weather? No problem. It laughs off UV rays, heat, and moisture. Whether it's freezing at -50℃ or roasting at 180℃, it stays rock-solid once cured. Can stretch and compress up to 25% — joints move, but this sealant keeps up. When it