Oil Only absorbents pick up petroleum-based fluids, paints and non-water soluble chemicals while repelling water - great for indoor & outdoor use. Drum top covers help to maintain clean work surfaces by preventing pump spills and overspray from reaching the floor. White absorbents pick up petroleum-based fluids, paints and non-water soluble chemicals while repelling water - great for indoor & outdoor use. Oil Only absorbents are unaffected by temperature and impervious to rot and mildew. Floats indefinitely even when saturated with oil.