Dap 7079808642 Black Silicone Window Door Sealant

Product Description

The DAP 7079808642 is a 100% silicone rubber sealant formulated for long-lasting waterproof sealing on windows, doors, and related building envelope applications. Once cured, the silicone remains flexible and adheres well to most common substrates, resisting cracking, crumbling, and chalking over time. The cured sealant is mildew resistant, making it a practical choice for areas exposed to moisture or humidity. Weighing 0.75 pounds per unit, it is packaged individually and suited for both indoor and outdoor use. Licensed contractors, glaziers, and experienced DIYers rely on this product for sealing gaps, joints, and penetrations in door and window assemblies.

This sealant is appropriate for residential and light commercial applications wherever a durable, flexible weatherproof joint is needed. Common uses include perimeter sealing around window frames, door frames, and threshold assemblies. Its indoor and outdoor rating makes it suitable for a wide range of climate conditions. The product meets ASTM C920 and Specification C719 Class 25, confirming it performs under defined cyclic joint movement requirements.

Key Features

• 100% silicone rubber formulation provides superior flexibility and adhesion after cure
• Waterproof seal resists moisture intrusion at window and door joints
• Cured sealant is mildew resistant for use in humid or wet environments
• Resists cracking, crumbling, and chalking over extended service life
• Rated for both indoor and outdoor use
• Meets ASTM C920 and Specification C719 Class 25 for cyclic joint movement

Compatibility

Designed as an OEM-style silicone sealant for window and door perimeter sealing in residential and light commercial construction and retrofit applications.

Installation Notes

Surface preparation is critical - substrate surfaces should be clean, dry, and free of dust, oil, and old sealant before application. Follow local building code requirements and the applicable provisions of the International Building Code when sealing building envelope joints. Keep area ventilated during application and allow full cure time before exposing the joint to water or weather. Do not apply over damp surfaces or when ambient temperatures fall outside the product application range stated on the packaging.