Consolideck Oil & Grease Stain Remover is a poultice cleaner for pulling stubborn oil and grease stains out of concrete. Just pour Oil & Grease Stain Remover on the embedded stain. It spreads out to make an instant poultice no mixing, troweling, plastic covering, or tape needed. As the poultice dries, it pulls the contaminants out of the substrate, capturing them in its highly absorbent blend of batter-thick surfactants, solvents, and powders. After a 5-8 hour dwell, simply sweep up the dried poultice and its absorbed contaminants for easy disposal.