Tenax TeClean Stain Remover Poultice Powder contains stone-safe surfactants and diatomaceous earth to remove stains on stone. By utilizing the stain process reversal technique, Tenax TeClean Poultice Powder draws the stain out of the stone. Designed to remove stains such as oil, grease, wine, tea, coffee, and other organic stains out of granite, marble, travertine, limestone, terrazo, concrete, brick, sanded grout, etc.