Permatex 81630 Ultra Red High Temperature Gasket Maker, 3 oz

Used it in the past when I was younger and dumber, but it did work. Some people like to use this as an "extra measure". I can say it held up well enough that I remember having a positive impression of it. Will seal. This is NOT an acceptable replacement for a gasket, but if you ain't got one, it'll get you outta a jam, and there are more specific applications where I use it. A quick-fix if you choose to use it that way, and holds up well enough.

Good gasket sealant

So far working great

One of the best and most affordable brands high temp RTV silicone. I use it for ceiling fittings on liquid culture jars used for mycology so they can be sterilized in an autoclave with no problem. Works great keeps a great seal and easy to use.

Exactly the same thing as you get at the parts store at a better price

Works great as advertised

Great purchase and fast delivery!

Used this to seal the thermocouple/thermopile/pilot on a Vermont casting fireplace. Worked perfectly.