Foster® 36-10 Weatherite Mastic is a premium-quality, water-based acrylic mastic that offers superior weatherproofing and sealing properties. It is designed for exterior use to provide a durable, flexible, and non-staining sealant solution. The white mastic is easy to apply and is known for its strong adhesion and long-lasting performance. Specifications and Properties Type: Acrylic Mastic Base: Water-based Color: White Packaging: 19-liter (5-gallon) pail; Weight approximately 26 kg Application Temperature: Above 40°F (4°C) Service Temperature Range: -20°F to 200°F (-29°C to 93°C) VOC Content: Meets current environmental regulations Curing Time: Dependent on thickness, humidity, and temperature Shelf Life: Typically 12 months when stored in a cool, dry place Adhesion: Excellent to most construction materials Features and Application Water-Based: Environmentally friendly with easy cleanup. Weatherproof: Provides excellent resistance to weathering, UV radiation, and extreme temperatures. Flexibility: Remains flexible with excellent recovery characteristics, allowing for expansion and contraction of the substrate. Non-Staining: Will not stain surfaces, making it ideal for visible areas. Durability: Long lifespan with minimal maintenance required. Ease of Use: Can be applied with a brush, trowel, or caulking gun. This product is ideal for sealing joints and seams in a variety of exterior applications including roofing, siding, window frames, and HVAC systems. It provides a reliable seal against air and moisture ingress and is suitable for both commercial and residential use. For best results, surfaces should be clean, dry, and free of contaminants prior to application. Always refer to the product data sheet and safety data sheet for detailed application instructions and safety guidelines.
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