Can I apply Rustoleum Marine primer and paint to Gluvit and Epoxy coated plywood

[vidsdinerie]

Progressing on my 14' Starcraft restoration. After much research I settled on replacing the transom and seats with 3/4 exterior plywood with transom glued together with Loctite PL polyurethane adhesive. All the wood has been coated with two coats of US composites 835 two part epoxy. I had some very minor seam leaks and sealed the seams with Gluvit.

Now I need to paint the interior of the hull as well as the wood seats and transom to protect the epoxy. My question is can I use Rustoleum Marine Topside primer followed by Marine Topside paint on the interior of the hull to paint the seams where the gluvit was applied as well as the rest of the interior of the hull. The Primer would be applied to cover the bare aluminum on the interior. Most of the original paint from 1977 is still on the sides of the hull and the seat structures but the floor is nearly bare and of course I removed all the paint around the seals to apply the Gluvit. I would be using brush and roller.

Also I want to use the same paint on the wood transom and seats before I install them. Our local boat store has limited options and I am running out of summer so I do not want to order paint and wait for it to come.

Has anyone used these over epoxy and gluvit before? The are oil based enamels and not polyurethanes but I can get them locally at Lowes and that is the big advantage.

US Composites website says the 835 epoxy can be top coated with any "epoxy compatible coating"

Any advice or experience would be appreciated. I looked through the archives and found a lot of help on painting the hull but nothing around painting over epoxy applied to plywood.

 

[jigngrub]

Re: Can I apply Rustoleum Marine primer and paint to Gluvit and Epoxy coated plywood

Just be sure to sand everything with 120 grit before painting and you'll be good to go.

 

[Woodonglass]

Re: Can I apply Rustoleum Marine primer and paint to Gluvit and Epoxy coated plywood

You really don't need to spend the extra on the "TopSide" branded paint. The Rustoleum Pro Oil Based enamel and primer will work just as well. ALL bare aluminum needs to be primed with a light coating first with Self Etching Primer and then then Rusty' primer. This link will give you the details you need..."Paint Your Boat for Under $100 Bucks...Well Almost"

I'd also recommend adding the Acrylic Enamel Hardener to the Paint as well.

 

[Bob_VT]

Re: Can I apply Rustoleum Marine primer and paint to Gluvit and Epoxy coated plywood

I have had some 50-50 success with paint over gluvit and epoxy. There is a chemical that SLOWS the drying time of enamels over epoxy. The best success I have had is using an automotive epoxy 2 part primer then paint. It most circumstances I have had paint separation from the epoxy surfaces if I did not use a 2 part automotive primer. The places where it separated first and most were near the bottom of the hull and around the base of the transom since water collects there. "Most" of the time regular primer/paint will last however, if it is a surface that tends to get wet or stay wet you may experience paint loss.

 

[vidsdinerie]

Re: Can I apply Rustoleum Marine primer and paint to Gluvit and Epoxy coated plywood

Thanks for the advice. I have a couple of questions

1. Will the etching primer damage the gluvit? It will be difficult to avoid some contact with the gluvit when applying. I could preprime the gluvit but will etching primer damage the primer?

2. Thanks for advice in using standard Rusto.. I really wanted a flat (or at least not a gloss finish) and found that Sherwin-Williams sells an oil based enamel that comes in gloss and low sheen and can be tinted. It is bit pricey at $22/qt though - Anyone have any experience with this paint for painting interior of Aluminum boat?

All Surface Enamel Oil Base - Homeowners - Sherwin-Williams

3. The primer for SW paint is also $22 - any concerns with just using the Rusto primer with this paint?

Thanks in advance for any advice

 

[Woodonglass]

Re: Can I apply Rustoleum Marine primer and paint to Gluvit and Epoxy coated plywood

SE primer will not hurt the Gluvit. SW paint is very similar to Rustoleum. Both are acrylic enamel oil based formulas. I usually like to use the same primer for the finish paint. I suspect the Rustoleum primer would work but... not sure so if it was me, I'd bite the bullet and use the SW primer. Or you could use the Rusty and then sand it with some 300 -400 grit after it cures to knock off the gloss to get the "Flat" look you're wanting.