Great post, MM. I meant to add that this gasket tape (at least the one I have) has some stretch to it, so that any joints in the gasket can be tightly pushed together so that, with luck, no other kind of sealant is required. I just replaced the gasket in an (1970s?) Italian Pianetta in this way. I decided to try first applying the tape on top of the remaining old gasket material, after just brushing off the loose, crumbly stuff. That worked just fine.