Many sealer categories and brands out there but I'm glad I picked this one for my concrete counters. I used a counter-specfic concrete mix and later applied a portland slurry to fill in air holes and other defects. I had added quikrete liquid color to all mixes, but after complete curing and sanding/polishing it was typical concrete grey so I counted on this sealer to bring out the color and it did, like magic. Instructions were good. 1st application absorbed well, not much excess to wipe off. 2nd absorbed less, more excess to remove. I added a 3rd just to be sure and I don't think it was necessary. I think I wiped it all off. Satisfying process. 1qt was plenty for 50sf of counter. I still have some left.