Black RTV Silicone Adhesive Sealant, Flexible 3 oz Tube

Permatex 81158 Black Silicone Adhesive Sealant, 3 oz. Tube, Pack of 1

Black RTV Silicone Adhesive Sealant for Glass, Metal, Plastic and Weatherstripping, Flexible 3 oz Tube

$41.76

A black RTV silicone adhesive sealant bonds, seals, mends, and secures compatible glass, metal, plastic, fabric, vinyl, weatherstripping, and electrical wiring. The flexible 3 oz formula works on horizontal or vertical surfaces for vehicle doors, windshields, seams, roofs, vinyl tops, and other supported indoor or outdoor repairs.

Once cured, the waterproof silicone resists water, weather, vibration, oil, and grease across a listed temperature range of -75°F to 450°F. Some bonded parts may need clamping for about one hour or until the silicone becomes firm. This is a general-purpose sensor-safe sealant and is not recommended for engine-gasket applications.

Specifications

Product type: RTV silicone adhesive sealant
Quantity: One tube
Volume: 3 oz
Color: Black
Form: Flexible silicone
Use: Indoor and outdoor compatible repairs
Temperature range: -75°F to 450°F / -59°C to 232°C
Resistance: Water, weather, vibration, oil, and grease after cure
Compatible materials: Glass, metal, plastic, fabric, vinyl, and weatherstripping
Clamping: May be needed for one hour or until firm
Restriction: Not recommended for engine-gasket applications

Frequently Asked Questions

Which materials can the black RTV sealant bond?

It is intended for compatible glass, metal, plastic, fabric, vinyl, weatherstripping, and electrical-wire repairs. Clean, dry, and test the exact surface before full application.

Does the silicone remain flexible after curing?

Yes. The cured black silicone stays flexible while resisting water, weather, vibration, oil, and grease within its supported service conditions.

Will parts need to be clamped during the repair?

Some bonded surfaces may need clamping for about one hour or until the silicone becomes firm. Follow the label's bead thickness and full-cure timing.

Can this RTV silicone be used as an engine gasket maker?

No. The product is specifically identified as unsuitable for engine-gasket applications. Choose a gasket maker rated for the exact engine component and fluid exposure.