Re: Brass scupper tube install
I think Mark makes a good point. A poly-sulfide like Life Caulk definitely merits consideration especially if you're thinking you might do this again in 10 or 15 years. Lord knows I won't want to compete with 5200 when I'm older. I like the adhesion qualities of 5200 but maybe not its permanence in this application. As far as 3M goes, maybe 4200 is more appropriate. Bushwacker mentioned he'd used Life Caulk the 1st time he changed his scuppers. All we're really doing is creating a seal between fiberglass and brass, right? Get the flare right and tight and I guess that a quality sealant should suffice. The Sika-flex 291 LOT definitely fits the bill... heck of a lot more economical than the 3M products.
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