colbysmith
Active member
If your bottom paint can be rubbed off, it’s likely an ablative paint. Most trailer boaters wouldn’t choose other options, though there are some for racers etc. As long as it is well adhered (not flaking or peeling) you can prep with your high pressure spray, or 80g sandpaper, or just a green Scotch pad (per Pettit) before Hydrocoat. You can expect an epoxy barrier coat under whatever paint they chose, likely a contrasting color, but you don’t have to scrape down to that. I used Primocon on the aluminum bracket only because I had a couple of gouges that went to bare aluminum, this requires sanding (or acid etch) to remove oxidation then immediate primer. It can also be used as a primer over an intact paint film of unknown type, but you shouldn’t need that. Then Alumacraft 2 ( a zinc product for aluminum outboard lower legs; here on the aluminum engine bracket to decrease the changes of galvanic corrosion you’d have with a copper paint over aluminum, even with a barrier primer).
My only prep on the sponsons was a good washing. Wear warm clothes for that this time of year.
I thought about getting this, but I didn’t:
https://www.jamestowndistributors.com/p ... tail/98161
Ok, I need one of those, better yet maybe two of them. Boy, are you going to be on Rosanne's sh&t list!

I tried to find what paint came with the boat, but guess I used it up and threw the can away. I did not plan on getting that kind again later, as I wasn't impressed with it. If you go back and look at my hull, will maybe I'll just upload it here to make it easier:

You can see here that top coat of blue. When I hit it with the pressure washer, in the chipped paint areas, it comes off pretty well. In other places where it seems to adhere better, the paint just dulls out some after I hit it good with the pressure washer. What's under it, that black stuff, I don't know if that was an initial bottom coat, or the expoxy primer you are talking about . I don't think it is the blue that comes off when I rub up against it, since my hands end up with black on them. A chalky black. I do like the color blue since it matches the boat pretty well, and still sets off from the white. Maybe it was you that recommended that paint you are using, earlier. But I remember some discussion on that brand and figured when I get ready to redo it right, I was likely going to that stuff. Colby