Epoxy To Seal Plywoodboat Floor

This plywood is formulated to resist water and moisture on its own.

Epoxy to seal plywoodboat floor.

Sealing marine plywood is a lot like sealing other types but it does differ slightly. Two part epoxy paints and one part polyurethane paints both use volatile organic compounds. It is almost always necessary to coat the marine. The floor will need to be cut out and replaced.

Is there an alternative to epoxy resin for sealing a plywood boat. In most cases you would coat only one side and be done with it but since marine plywood is going to be used underwater everything has to be treated. Epoxy will last longer and yes poly resin will eventually let some water through. Marine plywood is a type of wood specifically formulated for use in moist or wet areas.

Use multiple coats of epoxy i like 4 coats for an extremely durable protective finish. The end grain has been exposed meaning water has crept between the plywood and fibreglass over time. Prior to the same date would originally have been done with poly. Photo a shows the direct result of not sealing the end of a fibreglass boat deck where it meets the well.

You need to at least seal the top side of your plywood and the edges you can seal the bottom side of the plywood if you want or think it ll get wet. Any fiberglass boat pre about 1980 and any resined floor transom etc. The end result is the entire floor is now spongy and most likely rotten. Unlike an epoxy based paint which will dry in air using a powder coat paint needs high temperatures in the range of 300 degrees fahrenheit or more to adhere and that will melt the fibreglass boat floor.

But lots of old aluminum boats did nothing but paint the wood and in lots of cases it still lasted 30 years. Dip a foam brush into the clear penetrating epoxy. The many layers of marine grade plywood are held together with waterproof adhesive allowing the wood to withstand direct contact with water.