1PC DOW 791 Weatherproof Silicone Sealant (590ml) Neutral Cure Construction Grade Adhesive Sealant Paste Flexible Waterproof UV Resistant

DOW 791 is a one-component, neutral-cure RTV silicone sealant specifically engineered for architectural weatherproofing and construction sealing applications. It cures at room temperature by reacting with atmospheric moisture to form a durable, flexible silicone rubber that provides long-lasting protection against environmental exposure. This low-modulus sealant offers excellent adhesion to a wide range of building materials—including glass, aluminum, metal, masonry, brick, ceramics, and PVC—without the need for primer in most cases. Its superior flexibility allows for joint movement of up to ±50%, making it ideal for dynamic joints exposed to expansion, contraction, and vibration. Designed for exterior durability, DOW 791 delivers outstanding resistance to UV radiation, rain, ozone, and extreme temperatures, ensuring reliable performance in harsh outdoor environments. Its non-sag paste consistency allows for easy application on vertical and overhead surfaces, while fast tack-free and curing characteristics improve job efficiency.

• One-part, neutral-cure RTV silicone – ready to use
• Excellent adhesion to glass, metal, masonry, and plastics
• Superior weather resistance (UV, moisture, ozone, temperature extremes)
• ±50% joint movement capability for high flexibility