Thinning epoxy mucho for wood soaking?

I’m making an ugly plywood fin for a paddle/fish board and want to soak it in slow epoxy thinned way down to water like consistency so it will soak into the wood as much as possible, should I use acetone, denatured alcohol, xylene, or? as the thinner? Thanks

Xylene is probably best. Alcohol attracts water so that wouldn’t be the one to use with wood.