by GreenLake » Thu Dec 15, 2016 1:47 pm
Great tip and nice instructions.
Have to try the valve grinding compound sometime.
The CB is not very heavy. Almost any kind of support will do, if you don't happen to have jackstands around.
When I removed mine the last time, I had my boat upside down. Turns out, the easiest way to raise it out of the trunk and lower it back down in that position was simply two slings of webbing.
I've tried to find more detail on the various products you mention. Hysol seems to be the name for a line of epoxy resins and hardeners. For building up edges you'd need some filler mixed in, but I wasn't able to find on their website whether they offer that pre-mixed, and if so, under what product number. You should be able to substitute any decent epoxy, whether from West, MAS, or SystemThree, and mix with suitable filler. I use the SystemThree a lot, because it is stocked by many of the places I shop.
Or you can get a glass fiber mixed polyester-based filler. I've not used the Evercoat filler you mention, but there is one from 3M (high strength marine filler) and that one I know is strong enough to round edges and repair dings. In fact, it's strong enough I used it to add 1/4" to the trailing edge of my CB to give it a less blunt shape (and conversely, to give the leading edge a bit rounder nose).
The advantage of the polyester fillers is that they cure more quickly than epoxy, allowing you to do multiple passes, if you didn't get it quite right on first try, and less chance for things to sag or flow out while you are waiting for the epoxy to gel.
I've used SystemThree's epoxy based fairing compound (quick fair) to add a bit of bulk to the front half of my CB. Trying to approximate a more profiled shape. Not sure whether that was worth the effort, but since I had it out anyway and the surface was cratered with cracks, I thought it couldn't hurt. The fairing compound isn't very strong, so it sands easily, an you can't use it to build up edges, but epoxy based means its fine for underwater use, something that Bondo supposedly is not (keep reading that warning).
~ green ~ lake ~ ~