Professional Waterproof Neutral Silicone Sealant for Window Frame Seal. Neutral Cure System: 100% Silicone base with neutral cure for safe application on various materials. High Adhesion Strength: Provides strong bonding for doors, windows, glass, and aluminum frames. Weatherproof & Waterproof: Designed for exterior construction sealing with excellent weather resistance. Custom Color Options: Available in White, Clear, Black, Gray, and custom colors upon request. Factory Direct Sales: No strict MOQ for factory direct orders with competitive pricing. OEM Service Support: Supports custom brand, label, and packaging requirements for OEM orders. Fast Full Cure Time: Achieves full cure within 24-48 hours for efficient project completion. Long Shelf Life: 18 months shelf life when unopened, ensuring product stability.