Q. What’s the best waterproof sealer for butcher block countertops? Evaporating oil, polyurethane, polymerizing oil, and mineral oil sealants are just a few options, though one of the best ...

Unlock to see our ratings and compare products side by side The Olympic Wood Protector Waterproofing Sealant is part of the Wood Stains test program at Consumer Reports. In our lab tests ...