Runtai Exterior Grade Weatherproof Silicone Sealant for Glass Curtain Walls. 100% Silicone Raw Material: Ensures superior durability and chemical resistance for long-term performance. Neutral Cure Formula: Safe for use on metals and stone with low odor, suitable for interior and exterior. Excellent Adhesion: Bonds well to glass, aluminum, concrete, stone, and other construction materials. All-Weather Performance: Withstands sun, rain, wind, heat, and cold without degradation. Long-Lasting Flexibility: Resists cracking, shrinking, and hardening over time. Customized Color Options: Available in various colors to meet specific design requirements. OEM Service Available: Supports custom branding and design requirements for customers. Fast Tack-Free Time: Achieves tack-free status in 0.5 hours, speeding up installation.