Originally Posted by snort
Gluvit or Life Caulk on the aluminum struts of the Searunner
31? I couldn't find this info in the building guide.
Been building SeaRunners since 1968, when I walked into Jim Brown's design studio in Davenport, California
and bought the plans for my SeaRunner 25. I built that boat
, then built a 37 when I was 19, then a 56-footer of my own design when I was 24, and have been a professional boatbuilder
and fisherman since then.
boat shop is building these now:
Here's my opinion: Gluvit is a hard epoxy
product, and is not suitable for bedding things like the aluminum struts on that boat (which Jim calls A-frames), because it exhibits poor to no adhesion at all to metals. It will separate from the aluminum, and then the joint will leak, but you won't see it or know it because it's inside the joint.
Life-Calk is what I use for underwater fittings, and nothing else, and you BETTER GET THEM IN THE RIGHT PLACE THE FIRST TIME, because when you try to take them off, the Life-Calk also rips off the epoxy-glass covering over the wood, it has such extreme adhesion. It's easier to cut around the fitting with a chisel, then pull the fitting off, and you will only rip off a small amount of wood in the area of the fitting, then have to reglass that area, if you do it this way.
3M 5200 is a good compromise; it seals
well, adheres both to clean metal and fiberglass
and painted surfaces, and you can get the fitting off later by a cunning combination of sliding a razor blade around the edges of the area, then following with a sharpened, really thin putty knife to cut the rest of the 5200 seal and remove the fitting.
That's my story and I'm sticking to it,
With Warm Aloha, Tim