Gunk GB16-1G General Purpose Degreaser - 1 Gallon GUNK is a local family owned company based out of Charlotte, NC. For more than 75 years, GUNK products, developed by the people who use them, has earned the trust of hard-working tradesment and the active DIYer through consistent, superior performance and a commitment to innovation. Formulated to penetrate oils, greases and other soils Safe on painted surfaces Neutral PH