Can I use epoxy over water based MinWax?

Min wax, under epoxy it causes fish eyes. It needs a 2 part poly. Minwax has been known to cause fish eyes, so we do not recommend it.

The polyurethane recommend is the USC Spray Max 2K high gloss clear coat aerosol. That is not either water or oil based. It is just a 2 part polyurethane.

This principle would also apply if your surface has an oil-based stain or paint, you must apply 2-3 coats of polyurethane before doing the seal coat. The epoxy seal coat will not stick to an oil-based stain or paint. The polyurethane will cover that and allow the epoxy to adhere. This does not take the place of the epoxy seal coat as that is still necessary. If you have any questions, please let us know!