Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <PsychoticMinds1-at-aol-dot-com> Hi all Ok i have a question is the stuff in the tubes that go in a cauking cun just as good of an insulator as the brush on stuff? Frank P.s. sorry about the resend i forgot to put my name on it and i didnt want to get yelled at lol :-P