“Stains are reactive. It's a chemical that reacts with the concrete itself and produces an unpredictable color. And dyes are just like the dye that’s in your shirt. It's a predictable colo ...

Unlike dyes, concrete stains are generally classified into three categories: film-forming, penetrating and acid stains. All three types of stains come in a variety of colors, tints, shades and ...

There are two main types of concrete stains: water-based stains and acid-based stains. Acid staining is a popular choice ...

You can’t scrub oil and grease stains away. The trick is to draw them up out of the concrete with trisodium phosphate (or a TSP substitute), water and an absorbent material. Patience is the key.