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Old 03-12-2019, 09:07 PM   #13
Tom.B
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City: Cary, NC
Vessel Name: Skinny Dippin'
Vessel Model: Navigator 4200 Classic
Join Date: Jul 2009
Posts: 5,841
Quote:
Originally Posted by Comodave View Post
I would still use butyl even if you have to install the trim ring first. Butyl will work with any movement of the trim ring or porthole much more than any caulk. Keep in mind that butyl takes a long time to compress so you have to put it in and then clamp the trim ring and let it set and over time keep tightening the clamps and let the butyl gradually squeeze out.


How long are we talking here?
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