I don't want to appear arrogant or a know-it-all, but personally I dislike gasket maker materials in a tube when used to MAKE a gasket. The only place I would recommend using these or a similar product on a VINTAGE vehicle, particularly the engine, is perhaps sparingly on ONE side of an oil pan gasket when replacing for ease of removal if required. In a case where a gasket is not readily available for a job at hand, they're easy to make with suitable gasket material that should be available at most auto parts stores .The reason I mention this is that I've painstakingly removed some of this type of product that had been used previously ,(perhaps improperly) - was a sloppy job, did not do the job as intended, was clearly visible and I just couldn't let it pass - in all cases I've installed proper gaskets , made them when I didn't have one on hand ...Call it an eccentricity if you like. (Modern vehicles, powertrains, I'm sure there is a valid reason to use these products in some of the required maintenance). JMHO