EcoFast Heavy Duty, Eco-Friendly Paint StripperEco-Fast is available in a liquid (HD) or (GEL) version. They are a safe alternative to Methylene Chloride, Mineral Spirits, MEK, Naptha, NMP, Toluene, D?Limonene, etc. Unlike other competitive products, EcoFast has a neutral pH to work safely on a broader range of substrates such as concrete, masonry, wood, metal and most plastics. EcoFast works faster by penetrating through the coating to delaminate or break the bond rather than dissolving the coating. This delamination process is not only safer to use on various substrate materials, it allows easier and more efficient residue cleaning which is imperative if applying a new coating system.