Quikrete Clear Epoxy Coating

Quikrete states that, although this product can be used on a garage floor, it is intended to be used primarily indoors. However, if you decide to stain your concrete, this will be the best protection, indoors or out. With this product, you get a nice, low gloss look, and fairly good protection from chemicals and the elements. Unless you have stained concrete, or are offended at the idea of high gloss, the cheaper Quikrete garage floor high gloss sealer is probably a better option.