Kody wrote:Laminating epoxy resin will seal the end grains of plywood. At least two coats should be applied or even more if the end grain isn't filled.
And, ideally, those two or more coats should be applied wet-on-wet - as soon as the first application has soaked in and the end grain is visible again, apply another. This doesn't need to be a new batch, as the resin will soak in quicker than the epoxy sets, as long as you're not working in a desert.
Applying second coats onto cured resin is more likely to leave small voids, which will eventually draw in moisture.