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Question concerning acrylic urethane paint

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Mar 3, 2017, 6:35 PM

Post #1 of 1 (761 views)
Question concerning acrylic urethane paint Sign In

Can acrylic urethane be applied with a foam roller, and can it be applied directly over 600 grit sanded epoxy (as in West Systems epoxy)?

I realize that is not the traditional way, and there is a reason I need to do it this way. I would just like to know if applying by roller if it'll cover and will it stick?

I know the questions are going to come up, so might as well describe my intentions :-)

I race hydroplanes in American Power Boat Association racing. My hydroplane is a C class boat. It is 9.5 feet long, made of thin marine plywood and is covered in thinned layers of epoxy to seal it.

I want to paint it, but I have no spray gear, no place to spray it and I can't afford for a local paint shop to shoot it for me (three different shops quoted close to $1300 to do the work).

I don't need a show quality finish, although sandpaper is cheap and I have time and plenty of elbow grease.

I've painted stuff before with enamel (with hardener) and managed to wet sand it and buff it to a decent shine, but it is not durable enough for my boat, hence looking into the acrylic urethanes.

I see 2K clear is also available in aerosol cans and is compatible with acrylic urethane, so I may even consider clearing it and then wet sanding and buffing.

I'm just trying to get a solution I can do on the cheap and will be at least somewhat more durable than 1K paints, even if it means a lot of work with the sandpaper.

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