Polish and polishing product for headlights

For headlight restoration, you need a polish specifically formulated for polycarbonate. A headlight polish contains micro-abrasives that remove sanding scratches and restore transparency. Avoid standard automotive paint polishes, which can be too aggressive or contain solvents that are harmful to plastic. Ideally, use a compound first (more abrasive), then a finishing polish (finer) for an optimal result. AGM Vision offers headlight-specific polishes tested on polycarbonate, which restore up to 95 % transparency in a few passes.

By hand: apply a dab of polish onto a foam or microfiber applicator pad, then rub in circular motions with moderate pressure for 2 to 3 minutes per headlight. Wipe with a clean microfiber cloth.By machine: apply the polish to a polishing pad mounted on the polisher, set the speed to 1,500-2,500 rpm and work in cross passes over the entire surface. The machine provides a more uniform and faster result.In both cases, work in the shade and on a clean, dry headlight. AGM Vision recommends the machine method for a professional result.

Headlight polish is formulated specifically for polycarbonate (the plastic used for lenses), while bodywork polish is designed for automotive clear coat (the transparent layer over the paint). Headlight polish has calibrated abrasiveness so it doesn’t gouge the plastic, while removing sanding scratches. Some bodywork polishes contain filling agents (fillers) that temporarily mask defects instead of correcting them. A dedicated headlight polish actually corrects the surface. AGM Vision recommends using a headlight-specific product for a long-lasting, clear result.

No, polish alone is not enough for very opaque or yellowed headlights. The clouding is caused by a degraded layer on the surface of the polycarbonate, which must first be removed by sanding (grits P800 to P3000). The polish comes after sanding to remove the last micro-scratches and restore shine. On slightly dulled headlights, polish may be enough, because the oxidized layer is thin. AGM Vision recommends the complete method sanding + polish + UV protection for an optimal and long-lasting result. Without UV protection, the opacity will return in a few months.

A headlight polish generally keeps for 2 to 3 years after opening, provided it is stored in a cool, dry place, away from direct light. Close the bottle tightly after each use to prevent drying out and contamination by dust. If the product separates (liquid layer on the surface), shake it vigorously before use. A hardened or lumpy polish should no longer be used, as it may scratch the surface. A 250 ml bottle allows you to treat about 10 to 20 headlights, which represents excellent value for money.