Fellow-ship.....I'm in the process of re-doing 2 thru hulls, 1 is transducer and 1 high speed pick-up for bait pump/washdown. I cut 3/4" plywood 6"x6", 45* the 4 edges and applied 3 coats of epoxy. I think this is similar to yours and some others I've seen. Do I really need to glass these down or would a generous amount of 4200 do??? The surface they're going on isn't as flat as I would like for glassing is my biggest concern.
