OptiFlow Roll-On Epoxy Primer 1:1 is the easiest and most efficient way to get your car in primer, whether you\'re tackling the entire project or just doing one panel at a time! With excellent adhesion and corrosion resistance over bare steel as well as aluminum, fiberglass, body fillers and even existing finishes, it\'s the basis for a perfectly straight car with NO PAINT GUN NEEDED! Easily get your project in primer and ready for body work and basecoat, saving you time and money. It goes on so smooth everyone will think the great results came from an expensive HVLP spray gun. To properly apply this product and get the best results, you will need the  OptiFlow Tray and Roller Kit . Product Benefits: Save THOUSANDS when you do it yourself, and that\'s money you can spend on an engine, wheels or more tools! No overspray (in your garage or on the neighbor\'s car) Minimal masking required No airline contamination Confidence to primer your project! Plus pride in knowing you did it yourself. Fast and easy cleanup Product Features: Easy 1:1 mix ratio with separate catalyst ( item 23131ZP ) to make two roll-able gallons. Enough to cover most cars. Sands easily 2-3 days after application. TM - Direct To Metal application for a strong bond. Even apply over existing coatings, fiberglass and fillers. Awesome results without overspray or professional spray equipment. Plus no gun to clean. Save Time & Money. Nobody will know it was rolled on unless you tell them!