Pro-Tech Stripper is specially developed to effectively remove oil and latex finishes on all exterior wood, composite or concrete surfaces using New Clean Strip Technology. Pro-Tech Stripper leaves little or no residue and provides double the coverage of average strippers. This product is ready to use, 100% biodegradable, nonflammable, and certified zero VOC. Pro-Tech Stripper is the first step to preparing your wood for a beautiful Penofin application.