Mr. Gasket Silicone RTV - Grey - 3 oz. Tube

RTV – Grey 3 OZ Tube

PART# 78080G

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Mr. Gasket RTV is a high quality silicone sealant that is ideal for most automotive applications. We know that other brand silicone sealants come in bright blue, red, or other colors, but the small amount that shows between the castings and gaskets stands out and doesn’t look very attractive. The Mr. Gasket grey RTV blends right in and isn’t noticeable next to most cast iron or aluminum engine castings. This silicone sealant is ideal for use in most applications and is resistant to oil, water, and coolant. 3 oz. tube.


  • Grey Color – Looks More Attractive than Other Colors & Blends in w/ the Color of Cast Iron & Aluminum Castings
  • For Temperatures From -85° to 500° F
  • Resists Oil, Water & Antifreeze
  • Non-Corrosive
  • Low Odor
  • Fast Curing
  • O2 Sensor Safe
  • Meets OEM Specifications
  • Ideal for Use On Valve Covers, Oil Pans, Water Pumps, Timing Covers, Thermostat Housings & Intake Manifold (End Seals & Coolant Ports)
  • Retail Packaging – on Blister Card
  • Made in the USA


BrandMr. Gasket
Emission Code1
Product TypeSilicone RTV
Size3 oz. Tube
Temperature Range-85° to 500° F
Part Number78080G


This part is legal for use on Emissions Controlled Vehicles when used in accordance with the manufacturers application guide because it has a California Air Resources Board Executive Order number or is a direct or consolidated replacement part.

The following vehicles are considered Emissions Controlled Vehicles:

  • 1966 and newer U.S. manufactured California Certified vehicles
  • 1968 and newer U.S. manufactured Federally Certified vehicles
  • 1968 and newer Foreign manufactured vehicle
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        *Free Shipping & Handling only offered to the contiguous US on orders over $100.

        Some parts are not legal for use in California or other states with similar regulations.