Best sealer for brushed macaubus quartzite?
We are putting brushed macaubus quartzite in our kitchen and I'm wondering what sealer we should use. I tested a sample with the sealer that my installer recommends. He put one coat of DuPont Stonetech Professional Impregnator Pro on a sample and I tested water, olive oil, lemon, mustard, blueberry and raspberry on it. The raspberry and blueberry left stains when I wiped them off after a couple of hours (nothing else was a problem).
My installer will do a second coat of the DuPont if that's what we decide to go with, but I'd love to hear other recommendations. Thanks!