Does natural stone need sealer?

Yes. Pacific Stoneworks seals all of our jobs at least twice before installation. We use a modern, penetrating, V.O.C. (volatile organic compound) compliant non-distillate-based sealer that is a very long-lasting and was not available until recently. It penetrates without changing color or remaining on the surface of the stone, but prevents stains from the inside-out. To learn more, call or visit the website of the manufacturer Superior Stone Products at 1-800-493-5111 or http://www.superiorzero.com