yellow snot 3 m gaskets cement used in the auto body field works great i use it all the time on gaskets the only thing that is better than this is omc gasket cement you have to get this at a boat yard. this stuff is killer use this stuff to hold the oil pan gaskets up when i worked at the boat yard and i did rear main seal jobs with the engine over head on the chain fall this stuff is much better i do not know if you can get it still but i think some one that work at a boat yard can get it OMC made it i think it was typ m ??