bottom hull paint?

DCRocks

Wavejunkies
Location
Washington DC
no such thing. if you really want to hold a color. you could use some die in resin and put a new layer of fiberglass on the bottom of your hull and then gel coat it the same color.

You say a "die in resin".......

After sanding the bottom of the hull, is that something you could just brush on the hull, sand down, and then paint over? You mean just a jell that brushes over the bottom, or is this an actual reglassing of the bottom? I'm looking for something that isn't that thick, just tougher than paint. Looking to turn the bottom of the hull black, and would like to do something that will last past the first half dozen beach landings.
 
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I was just asking that same question.I've been doing boat building for almost 12 years now & thought that I could prep & spray my js550 hull as well,then I contacted fiberglass coating & they informed me that my hull is smc & that the gel coat might stick for awhile,but due to the flexing it would basically just crack & fall off. They had recomended a good quality paint like an acrylic enamel or a single stage urethane.I did some checking online & came up with this site www.PaintForCars.com They answered ALL of my question's & told me the best route to go for a marine application.Prices arent too bad either for theyr'e kits.Anyway's,I got the acrylic enamel & will let you know how it turn's out
 

WaveDemon

Not Dead - Notable Member
Location
Hell, Florida
You say a "die in resin".......

After sanding the bottom of the hull, is that something you could just brush on the hull, sand down, and then paint over? You mean just a jell that brushes over the bottom, or is this an actual reglassing of the bottom? I'm looking for something that isn't that thick, just tougher than paint. Looking to turn the bottom of the hull black, and would like to do something that will last past the first half dozen beach landings.

I was talking about reglassing the bottom. you could play with spreading colored resin on the bottom but getting it to look smooth would be tough. maybe you could add a sanding agent.

My idea was reglass the bottom with die so that when the top coat of paint or gel coat is scratched the died glass won't stand out that much.
 

just joe

Site Supporter
Location
NorCal
DuPont's Imron will work well for the bottom. Even gelcoat will get scratched, and it's even more of a pain to apply and get it looking good than a hard single stage paint like the Imron. Paint it white, then when you do get scratches touch them up with a rattle can of appliance epoxy.

90% of the finish and durability is related to the prep work. degrease well, scuff well, use epoxy primer, and spray the Imron after the primer is set. Don't let the primer fully cure such that you have to scuff it. You won't get the best bond. You want a chemical bond, not a mechanical one.
 
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