Mirka 23-352-080RP Gold 8" PSA P80 W part

Mirka Gold 8" PSA P80 Disc

The Mirka Gold 8" PSA disc uses a pressure-sensitive adhesive backing for quick attachment to compatible sanding pads. It is designed for surface preparation and material removal in automotive refinishing and general workshop tasks. The P80 grit provides aggressive cutting action on primer, paint and body filler. This product suits technicians who need a fast-change abrasive for machine sanding operations.

Limits of PSA attachment and P80 grit

The pressure-sensitive adhesive requires a clean, flat backing pad to hold securely during high-speed rotation. Dust and residue on the pad surface reduce bond strength and can cause the disc to shift or detach. P80 grit removes material quickly but leaves deep scratch patterns that must be refined with finer grades before finishing. The disc is not suited for final finish sanding or polishing steps where finer abrasives are required.

Replaces worn P80 PSA discs for continued cutting

This disc replaces a used Mirka Gold 8" PSA P80 disc when the abrasive grains are dull or the backing is torn. The jump to a fresh disc is worth it when cut rate drops and sanding time increases on the same substrate. It does not change the grit sequence; users needing a smoother surface must still progress to higher grits. Buyers who need a different grit size or a hook-and-loop fastening system should select an alternative product.