I found that when I removed the plexi, there were three previous adhesives in place. Two were softish like silicone and there was definitely Plexus as it was rock hard. I hand sanded things reasonably level, and did the thickened epoxy to create a flatter surface. I didn't remove all the Plexus as it was very firmly attached to the fiberglass. My top sides were previously painted with Awlgrip, so I primed and painted the window flange and surrounding area so the surfaces were continuous and the 795 would have something decent to bond to. This process was the most time consuming part of the portlight project by far. And expensive given the numerous Awlgrip components I needed.
Derek McLeod 1983 29-2 Aileron Toronto www.derekmcleod.com > On Nov 11, 2015, at 4:33 PM, Gary Russell <captnga...@gmail.com> wrote: > > Dennis, > Fortunately, most of the gel coat damage is under the plexiglas, so it > won't be visible once the VHB and acrylic is in place. Since 95% of the > Plexus is in tact, I am considering filling the chips in the Plexus / gel > coat with epoxy thickened with silica and calling it a day. I would do less > damage and it would be less work. Once the windows were in place you would > never see it. > > Gary > S/V High Maintenance > > ~~~~~~~_/)~~~~~~
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