We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in

Pro-Seal

Pro-Seal 80067 Waterproof Gasket Sealant 11.1 oz Clear -75 to 500°F

SKU CH-PJT1-ED3QH

Clear waterproof gasket sealant in an 11.1 oz cartridge handles -75 to 500 °F with a 10-minute working time

  • Withstands extreme cold down to -75 °F
  • Handles high heat up to 500 °F
  • Water-resistant acetoxy silicone protects metal joints
  • 10-minute work time allows precise application
  • Fills gaps up to 0.25 in with full cure in 1 day

Pro-Seal 80067 RTV Instant Gasket

This acetoxy silicone paste creates formed-in-place gaskets for metal components. It resists water and operates continuously from -75 to 400 degrees Fahrenheit. The clear formula suits automotive and industrial sealing tasks where visibility of the joint matters.

Cartridge format with 10 minute working time

The 11.1 ounce cartridge fits standard caulking guns for controlled dispensing. Paste consistency fills gaps up to 0.25 inches without sagging on vertical surfaces. Full cure occurs in one day at room temperature, reaching a Shore A hardness of 27 to 30.

Maximum 400 degree continuous service limit

The sealant withstands brief exposure to 500 degrees but is rated for 400 degrees Fahrenheit sustained use. Buyers needing higher continuous temperature resistance should select a different product. Flash point is 100 degrees Celsius.

Highlights

  • Withstands extreme cold down to -75 °F
  • Handles high heat up to 500 °F
  • Water-resistant acetoxy silicone protects metal joints
  • 10-minute work time allows precise application
  • Fills gaps up to 0.25 in with full cure in 1 day

Specifications

BrandPRO SEAL

Questions about this item

What temperature range does the Acetoxy Silicone base handle in continuous use?

The sealant is rated for continuous service from -75 °F up to 400 °F, with short-term exposure to 500 °F.

What cartridge diameter and gap width will this 11.1 oz tube fit?

The 11.1 oz cartridge fits standard caulking guns and fills gaps up to 0.25 in wide.

How long after applying the paste do I have to assemble parts before it skins over?

You have a 10-minute working time at room temperature before the surface begins to cure.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.