Menzerna

Menzerna is a fourth-generation family-owned German chemical company that has made polishing abrasives since 1888 — originally for jewellers and metalworkers, with automotive paint correction added in the modern era. The brand is the de facto reference for professional paint correction across European and US detailing shops. Menzerna's polish line is organized around abrasive grit equivalence (Heavy Cut 1000, Medium Cut 2500, Super Finish 3500, Final Finish 4500). The Super Finish 3500 — formerly sold as SF 4000 — is one of the most-cited finishing polishes in detailing forum history, and the line is the quiet industry default behind most professional correction work that doesn't carry a brand name on the bottle.