Description OPTEX™ Super Build 4:1 Primer highlights dents, low spots, scratches, and other surface imperfections while at the same time eliminating the need for messy carbon black powdered guide coats. This 4:1 primer sprays on pink and turns gray as it is sanded, revealing high spots while low spots and scratches remain pink. Patent-pending built-in guide coat eliminates the first guide coat step Adheres to a broad range of substrates including bare metal, aluminum, fiberglass, rigid plastic, body filler or putty Direct to metal application eliminates the need for epoxy or self-etch primers Waterborne paint compatible and VOC compliant. Product Highlights 2k Hybrid epoxy primer surfacer 4:1 Mix ratio Apply directly to bare metal Excellent corrosion protection Exceptional filling and build properties. Ready to sand in 2 hours Supplied as a kit – 3.78lt Primer and 946ml Catalyst
