Shopping Cart

Your cart is empty.

Your cart is empty.

Permatex 81158-12PK Black Silicone Adhesive Sealant, 3 oz. Tube (Pack of 12)

Free shipping on orders over $29.99

$44.59

$ 19 .99 $19.99

In Stock

About this item

  • General-purpose, black RTV indoor/outdoor sealant bonds, repairs, seals, mends and secures glass, metal, plastics, fabric, vinyl, weather stripping and vinyl tops
  • Protects and repairs electrical wiring
  • Works effectively on both horizontal and vertical surfaces
  • Waterproof and flexible with a temperature range of -75 degrees Fahrenheit to 450 degrees Fahrenheit
  • Oil, water, weather, vibration and grease resistant


Permatex Black Silicone Adhesive Sealant is a general-purpose, black RTV indoor/outdoor sealant. Effectively bonds, repairs, seals, mends and secures glass, metal, plastics, fabric, vinyl, weather stripping and vinyl tops. Also protects and repairs electrical wiring and may be applied to horizontal or vertical surfaces. Waterproof and flexible with a temperature range of -75 degrees Fahrenheit to 450 degrees Fahrenheit, this sealant is oil, water, weather, vibration and grease resistant. Suggested applications include windshields, door frames, electrical connections, seams and roofs, vinyl tops, and weather stripping.


Steve Trammell
Reviewed in the United States on January 27, 2025
looks good
anthony spinello
Reviewed in the United States on June 5, 2024
nothing more need be said.
Michael B.
Reviewed in the United States on September 24, 2023
Best sealant/ adhesive on the market!!
mavrick70
Reviewed in the United States on April 23, 2023
Black rtv is just a good all around silicone.I have been using black for years with good results where oil or water is involved.Ultra black and ultra gray are better for high pressure and red and copper are best for high heat. This is the same rtv that comes in some fel-pro gasket sets, just in a very small tube.
end of the road brewer
Reviewed in the United States on November 22, 2022
this has may usese seals great and handy tube size
marvin a kassner
Reviewed in the United States on November 25, 2021
If you want a gasket or something like to seal than this is what you should use. If you do it right itll never leak
Honest reviewer
Reviewed in the United States on May 30, 2014
These tubes of silicone work wonderfully. Great when you only need a little here and there instead of getting those big construction tubes with the squeeze gun to operate with.These should last me for a long time.Thanks!
digidida
Reviewed in the United States on December 19, 2010
I use it mainly to weather proof electronic devices on electric bikes I'm building (ebikessf.com), especially to seal around electric cables where they come out of enclosures. This stuff is very sticky - bonds to almost any surface, flexible - doesn't easily crack, doesn't conduct electricity - I use it on circuit boards. However it is toxic, use it in well ventilated areas, wearing respirator is a good idea, definitely wear cloves, this stuff gets under the skin and is really hard to wash off.