Hi, I've read the other responses and while it would be best to do the job right, VHB and 795, and so on, I have had good luck with the 795. I used just 795 to replace my portlights two years ago and they have held up very well in Toronto where we get dramatic temperature variations from summer to winter. Since I am in Canada, it was cost prohibitive to get the correct thickness VHB, so I went with 795.
My anecdotal evidence for a quick fix with the 795 was after sealing up the leaking windshield on my 2001 Jetta. I had the windshield replaced at one point by a mobile installer guy and eventually it developed a leak right above the drivers seat at the seam at the roof. I contemplated taking it in to a proper windshield shop but they didn't want to risk breaking it to remove it. A couple years later, after doing the portlights on the boat, I figured "Hmm, I still have a bunch of tubes of 795 - maybe that would fix that pesky leak." It's held up fine for at least a year and adhered to whatever was there with no real preparations other than masking the adjacent areas. My portlights had vertical cracks running through the acrylic, so sealing the edge wouldn't have helped, but if the leak is just at the edge, it could be worth a try. Derek McLeod 1983 C&C 29-2, Aileron Toronto > On Mar 28, 2017, at 12:04 PM, Bruce Whitmore <bwhitm...@sbcglobal.net> wrote: > > Hello again everyone, > > Our C&C 37/40+ has a minor leak or two through the fixed portlights windows. > I have read up on the removal & re-installation process, and many seem to be > recommending the VHB tape and Dow 795 sealer approach (or similar). > > I would like to seal the fixed portlights in place without replacing them for > now. While they are showing some crazing, and I intend to eventually replace > them (say in 18 months or so), in the short term I simply want to stop all > leaks so that we can prevent any further staining of the teak. > > Does anyone have a recommendation as far as doing this? Should I simply > attempt to carefully mask the fiberglass & plexiglass on the exterior and > apply a bead of Dow 795? > > Would it be better to apply a thin layer on the inside? > > Or, am I guilty of wishful thinking? > > Thanks! > > Bruce Whitmore > > (847) 404-5092 (mobile) > bwhitm...@sbcglobal.net
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