Permatex 81158 Black Silicone Adhesive Sealant, 3 oz. Tube

Permatex 81158 Black Silicone Adhesive Sealant – 3 oz. Tube

The Permatex 81158 Black Silicone Adhesive Sealant is a high-quality, general-purpose formula designed to provide a durable and flexible seal for a wide range of automotive and household applications. This RTV (Room Temperature Vulcanizing) silicone is engineered to bond, seal, repair, and secure materials, making it an essential tool for DIY mechanics and professionals alike.

Key Features & Benefits

• Weatherproof & Waterproof: Provides a tight seal that resists moisture, weathering, and aging without cracking or shrinking.


• High Flexibility: Maintains a tough, elastic bond that withstands vibration and thermal expansion.


• Wide Temperature Range: Effectively operates in environments ranging from -65°F to 450°F (-54°C to 232°C).


• Multi-Surface Compatibility: Bonds to metal, glass, wood, plastic, silicone resin, vulcanized silicone rubber, ceramics, and painted surfaces.


• Oil & Chemical Resistance: Formulated to resist common automotive fluids and shop chemicals.

Versatile Applications

This adhesive sealant is perfect for various automotive and home repair tasks, including:

• Sealing windshields, sunroofs, and windows.


• Repairing door frames and weather stripping.


• Protecting and insulating electrical connections.


• Sealing vinyl tops and seams.


• Bonding trim, nameplates, and emblems.

Product Specifications

• Brand: Permatex


• Part Number: 81158


• Color: Black


• Material: Silicone


• Container Type: Tube


• Size: 3 oz.


• Condition: New

Directions for Use

For best results, surfaces should be clean and dry. Apply the sealant to one surface, then assemble the parts immediately. Allow the product to cure; it typically skins over in about an hour and reaches full cure within 24 hours depending on temperature and humidity levels. Always replace the cap after use to ensure the longevity of the remaining adhesive.

Why Choose Permatex?

Permatex is a trusted leader in chemical products for the automotive maintenance and repair market. With the 81158 Black Silicone Sealant, you get a reliable, professional-grade solution that ensures long-lasting repairs and protection against the elements.