Water-Based Acid Acetic Acrylic Silicone Sealant 300ml 100% RTV Weatherproof Silicone Sealant. Superior Weatherability: Excellent aging resistance with no color change over long periods. Fast Curing Process: Tack-free in 5 minutes with no vertical flow for easy application. High Adhesion Strength: Provides strong bonding for general purpose industrial and DIY uses. Waterproof & Mildew Proof: Resists moisture and prevents mildew growth effectively. Flexible Performance: Elongation at break reaches 1250% after 7 days for durability. Customizable Color: Color customization options are available for specific needs. Global Certifications: Passed CE, ISO9001, ISO14001, SGS, and CNAS quality standards.