Stain-Sorb is a unique liquid stain absorbent and remover. It is highly effective against hydrocarbon-based oils, greases, BBQ grill stains, silicone oils from tire dressings, and other stains. It is ideal for use on asphalt, concrete, paving stones, pressure treated wood, composite decking, and other surfaces. Designed to reach into the pores of porous and untreated surfaces for deep stain removal, it will also remove stains from treated and sealed surfaces. Easy to apply by pouring, brushing, or rolling onto stained surfaces. Thickened liquid applies to vertical services. Dries to a powder within hours for easy removal by brushing, sweeping, blowing or rinsing. No scrubbing or rinsing necessary. Biodegradable.