Epoxy To Seal Plywoodboat Floor

Epoxy will last longer and yes poly resin will eventually let some water through.

Epoxy to seal plywoodboat floor.

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. I would like to keep my costs down on this project as i just bought a car but would still like to build this boat so i can get out on the water along with my wife who has a kayak. Photo a shows the direct result of not sealing the end of a fibreglass boat deck where it meets the well. Marine plywood is a type of wood specifically formulated for use in moist or wet areas.

Prior to the same date would originally have been done with poly. Any fiberglass boat pre about 1980 and any resined floor transom etc. Use multiple coats of epoxy i like 4 coats for an extremely durable protective finish. The floor will need to be cut out and replaced.

This plywood is formulated to resist water and moisture on its own. The end result is the entire floor is now spongy and most likely rotten. The many layers of marine grade plywood are held together with waterproof adhesive allowing the wood to withstand direct contact with water. However usually the materials in the wood are not enough to block all moisture from the wood.

Two part epoxy paints and one part polyurethane paints both use volatile organic compounds. 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. Sealing marine plywood is a lot like sealing other types but it does differ slightly. Dip a foam brush into the clear penetrating epoxy.

But lots of old aluminum boats did nothing but paint the wood and in lots of cases it still lasted 30 years. 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. Since it s the ideal wood for moist or wet conditions it s often used to craft boats boat parts or outdoor furniture in coastal areas.