Oil-based paints and solvents should be taken to the Jefferson County Household Hazardous Waste Facility. This includes paints, stains, solvents, roof tars, automotive grease, putty and caulks with combustible or flammable label warnings. Fees apply to eligible businesses.
Latex paint can be disposed of in the garbage once it is thickened to a non-pourable consistency. See Tips on Latex Paint. This can include water-borne stains and sealants with instructions to clean with ‘soap and water’. Watch King County’s brief video linked on this page.