Originally Posted by roverhi
Should work great. Butyl is extremely elastic and should seal better in the long run. The only caution I'd have is to go back and tighten the bolts several times after installation
. Butyl is pretty viscous stuff and will continue to squeeze out over a couple of days.
+1 on this.
a 13 ft long deadlight with the 3M butyl tape. If I didn't trim the edges just right I would track butyl around the boat. The boat was in the Texas
heat, the deadlight at an angle pointing towards the sky, so the butyl really heated up. I used black butyl, the very color Mainsail
says not to use, and for good reason. My fix to this problem was to run a bead of uv stable caulk around the port. But I think if you do this right, and its not in a high traffic area, you will not have the issues I had. It was my first time working with the stuff.