KBS DiamondFinish Clear Coat: 1K Urethane That Cures 7H Hard on Metal,8504

DiamondFinish Clear bonds directly to bare ferrous and non-ferrous metal, wood, fiberglass, gelcoat, carbon fiber, and fully cured paint including automotive basecoats. DiamondFinish Clear needs no adhesion promoter or primer on any of these. Bare wood takes a first coat thinned 30 to 50 percent with KBS #1 Thinner to seal the grain before the full coats go on.

• Ferrous metals: Mild steel, carbon steel, stainless steel, cast iron, and wrought iron. Polish or sand to the finish you want, then clean with KBS Klean diluted 10 parts hot water to 1 part KBS Klean.
• Non-ferrous metals: Aluminum, brass, copper, chrome, and alloys. Use a weaker 25 to 1 KBS Klean dilution and a very soft pad, wipe rather than soak, and rinse immediately.
• Wood: Bare and previously finished wood, indoors and out. Remove failed coatings, sand smooth, and seal the grain with a coat thinned 30 to 50 percent. Full directions are in the wood section below.
• Fiberglass, gelcoat, and carbon fiber: Clean with 10 to 1 KBS Klean, scuff with 600 to 1200 grit, re-clean, and dry. This is the standard path for reviving oxidized boat gelcoat.
• Cured automotive basecoats: Apply the basecoat per its own directions and let it dry, normally about one hour, then clear coat. Use a UV stable basecoat if the part lives in the sun.
• Cured 1K and 2K paints and solid colors: Clean, scuff with 600 to 1200 grit, re-clean, and dry. Minimal prep, and the coating self-levels over brush and roller marks.
• Water-based acrylics and urethanes: Compatible once fully cured, which is how DiamondFinish Clear adds gloss and chemical resistance to water-based custom work.
• Concrete: Covered by its own separate directions page, linked in the resources section below.