Description: SB-442 General Stain Remover is a concentrated, nonacid degreaser and general purpose cleaner for use on pavers, concrete and retaining walls. This technologically advanced cleaner removes motor oil, food and beverage stains. It is environmentally friendly and replaces several types of harsh acid cleaners. SB-442 General Stain Remover's chemical blend draws out stains from within the surface but does not etch or damage concrete, anodized aluminum or painted surfaces. It is suitable for both horizontal and vertical surfaces.