Henkseal® Gray Structural Silicone Sealant for Strong Structural Applications. High-Strength Adhesion: Excellent primer-free adhesion to metal, glass, wood, concrete, and most engineered plastics. Weatherproof Performance: No shrinkage or cracking after curing; resistant to UV light and harsh weather conditions. OEM/ODM Support: Full support for OEM and ODM services including logo and package design customization. Comprehensive Certifications: Certified with MSDS, TDS, REACH, ROHS, SGS, TUV, and ISO9001 standards. Free Sample Availability: Free samples provided for quality testing (customer covers shipping costs). Long Shelf Life: Product maintains stability and quality for 12 months from production date. Easy Application: One-component formula that works on wet surfaces and in all weather conditions.