BacKrete is a fine absorbing powder that helps remove the toughest of grease stains. It's simple to use formula allows for quick and effortless application. Simply spread the chemical over the area desired to be treated and the let BacKrete do the work for you. This highly absorbent powder contains naturally occurring non-genetically altered bacteria that consume Diesel Fuel, Motor Oil, Gasoline, Kerosene, Jet Fuel, Fuel, Oil, and most Hydro-Carbons. When spread onto any Hydro-Carbon spill, the powder works the bacteria into the concrete pours allowing them to eat the hydro-carbon spill as their food source. BacKrete is an eco friendly, effective solution to removing the toughest concrete stains. 16 pound pail.