S/S Permatex - Ultra Copper - RTV Silicone Gasket Maker - Exhausts to 700oF - 85g

Q: Can this be used on a valve cover gasket to get a better seal?

Yes. It is better than OEM gaskets in that it conforms to any warpage, dents, dings, & other incongruities, whereas OEM gaskets are designed for factory new, perfect valve covers without flaws. Withstands 700 degrees.

Q: Can I use this product to seal several non-moving parts of a wood burning stove instead of the standard gasketing material?

This gasketting goop is absolutely incredible for sealing wood stove parts. I’d certainly never use it on the fire box. But it can and will hold to moving parts in high temperatures. It lasts for several years on one application.

Q: can I use this to seal radiator tubes to a heat exchanger in my gas furnace? Gaskets no longer available for it.

Greetings! As I don't know this application, specifically, I can say that say that Ultra Copper is excellent for sealing liquid coolant surfaces in truck/auto repairs. Temperature, up to about 800*F and pressures exceeding 15 psi will remain sealed with this product. U.C. remains a pliant sealing silicone "glue", but it won't harden, as epoxy does. If you need a sealer that also hastens, look elsewhere. If this is for a flange or any flat, secured surface, you're good-to-go. NO acetic acid in this product, if that's a plus for you.

Q: Can I spread this on outside of exhaust manifold leak like you would caulk something or does it have to go between parts? F150 '04 V8

It is too much pressure and heat to use any caulk or rtv. Even muffler cement doesn't work. You might have a lean fuel mixture to cause the problem in he first place. Exhaust bolts rust solid from heat erosion, use the right amount of points on the socket to get bolts out(6 sided bolt--6 sided socket) Copper metal exhaust gaskets work well. Mr. Gasket brand.

4.7/5

Product ID: 50081863

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💧3x oil resistant

🔥700°F max temp

🛠️8x flexible

Frequently Bought Together

Permatex 81878 Ultra Copper Maximum Temperature RTV Silicone Gasket Maker, 3 oz. Tube

Permatex 85080 Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker, Sensor Safe And Non-Corrosive, For High Flex And Oil Resistant Applications 9.5 oz

Permatex 81630 Ultra Red High Temperature Gasket Maker, 3 oz

Description

🚀 Seal the Deal with Ultra Copper!

SENSOR SAFE FORMULA - Low odor and non-corrosive, perfect for sensitive environments.
ULTIMATE FLEXIBILITY - Eight times more flexible than traditional cut gaskets.
VERSATILE APPLICATIONS - Ideal for exhaust manifolds, valve covers, and more.
SUPERIOR OIL RESISTANCE - Three times more resistant than standard silicones.
UNMATCHED HEAT RESISTANCE - Withstands up to 700°F for extreme applications.

The S/S Permatex Ultra Copper RTV Silicone Gasket Maker is the pinnacle of high-temperature gasket solutions, designed to endure extreme conditions while providing superior adhesion and flexibility. Perfect for a variety of automotive applications, this 85g tube is a must-have for any professional or DIY enthusiast looking to achieve a reliable seal.

Specifications

Brand	Permatex
Model Number	81878
Product Dimensions	20.32 x 10.16 x 5.08 cm; 85 g
Material	Silicone
Item Weight	85 g

Have a Question? See What Others Asked

Can this be used on a valve cover gasket to get a better seal?

Can I use this product to seal several non-moving parts of a wood burning stove instead of the standard gasketing material?

can I use this to seal radiator tubes to a heat exchanger in my gas furnace? Gaskets no longer available for it.

Can I spread this on outside of exhaust manifold leak like you would caulk something or does it have to go between parts? F150 '04 V8

Reviews

4.7

All from verified purchases

S**N

Perfect for gasket sealing on a Kamado Grill

Perfect for resealing the mesh gasket on my Kamado Joe Classic 3

15.07.2023

R**S

One time use

Squeezed the tube, and it just unraveled the back end and came out there instead of the nozzle.Now needs to be binned.

29.10.2023

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