Yep, Gasgacinch and Permtex300 What I use. I don't like silicone much. For Cork I glue one side to the heaviest metal part. Vaseline, on the exposed cork and clamp it down. Lets the cork stay soft and release. Works wonders on Valve covers and oil pans. Cardboard types get glued on both sides. "O" rings get no glue, just a bit of Vaseline. Carb base gaskets get some Vaseline, it helps them seal and they can be taken apart.
