Painting Over Gelcoat?

I think part of the decision is related to how big the boat is.

If a small boat, especially one that can be trailered or otherwise easily gotten out of the water then no problem repainting more frequently so a lesser paint is ok (although I would personally still go for 2 pot polyurethane as I am lazy).

But for a bigger boat that has to be lifted and does not regularly come out of the water and for which the painting job is much bigger, then having a system that lasts 15 or more years is very attractive.

Personally I have found that polyurethanes are much easier to use than single pots, even brushing, because it dries so fast. Is no harder to apply and can get several coats on in a short time without worrying about drying times. I mainly brush just small items though but is very quick compared to single pots when using epoxy build coats and polyurethane top coats because of the short recoating wait times. In warm climates I have seen repairs done to collision damaged polyurethaned topsides completed in a day - build coat and top coats all on.

Obviously if ones boat is already painted with a non epoxy/polyurethane then one is stuck with that unless a very big job getting all the old off, due to the incompatibility of the paint systems.

John
 
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