Waterproof Marine
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US $1,799.95
Waterproofing Marine Plywood after Marine Paint Used?
I built a truck canopy with marine plywood two years ago and then painted the exterior with marine grade paint. I'm now getting checking on the exterior, and in the winter the interior of the canopy is absorbing water from the cold and humidity. How can I waterproof it at this point? Can I epoxy over the exterior paint or does it need to be stripped?
Boat resin epoxy it the only way I know of "for sure" that you can elimate this problem both inside and out... To do this however, you would have to completely sand down all the paint on your plywood.
"Marine plywood" however was not really necessary... If both sides are exposed however, and you want both sides to look good, then "good on both sides" grade plywood is all you really need.
With boat epoxy, you need to totally laminate and encapsulate your wood. This prevents any water, moisture, bugs, worms, or air, etc. from penetrating the epoxy and reaching your wood. And since disease, mold, etc. requires air - your problem is solved. But, you have to put this on first, and you need to insure that every single bit of your wood is coated - edges, corners, joints, etc.
Do this before you paint, and your canopy will out last your truck - I guarantee...
I have attached a link where you can order epoxy... They sell a gallon thin epoxy resin together with a half gallon of hardener for a total price of $69.00. I have used them for years, and use them often. You can order online, and they charge and ship as promised.
Good luck,
John
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