Surface Prep

Preserve Metal Patina: Scuff-Sand for Clear Coat (320–600)That perfect, time-earned patina on steel, copper, or bronze is priceless—but easy to ruin with the wrong prep. The goal when clear-coating patinated metal isn’t to “sand it clean.” It’s to stabilize the...

Copper surfaces—whether cookware, jewelry, or hardware—tarnish and lose shine quickly. To restore their warm glow, sand progressively with 400 ? 800 ? 1500 ? 2000 grit, followed by polishing compound. This sequence removes oxidation, evens scratches, and prepares copper for...