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Three purple bristle discs, 36 grade abrasive, 18000 RPM max

Scotch-Brite

Scotch-Brite 07537 Bristle Disc 36 Grade 18000 RPM PK3

SKU CH-0QYE-KT59V

Three 36-grade bristle discs remove undercoating, seam sealers and rust without loading at 18000 RPM

  • Removes undercoating and sealers fast with 36-grade aluminum oxide
  • Reaches 18000 RPM on right-angle or straight-shaft air tools
  • Bristle design resists loading when stripping high-build coatings
  • Contains no wire filaments for safer surface preparation
  • Pack of three discs for extended job coverage

Scotch-Brite 07537 Bristle Disc

The Scotch-Brite 07537 is a 36 grade abrasive disc designed for aggressive surface preparation. It targets automotive professionals and restorers who need to strip heavy coatings down to bare metal. The unique bristle construction resists loading when tackling rubberised undercoating, seam sealers or rocker panel coatings. Each pack supplies three discs for extended workshop use.

Thermals noise and power

Friction heat stays manageable because the open bristle structure lets air flow across the workpiece during operation. No wire filaments means there is no risk of metal splatter or embedded wires contaminating the repair area. The purple aluminium oxide mineral cuts fast without generating excessive surface temperatures on steel panels. Noise levels match typical right-angle air tool output in a body shop environment.

Build fit and clearance

Each disc mounts on a standard right-angle or straight-shaft air tool rated for 18000 RPM maximum speed. The three-inch diameter reaches into wheel arches, rocker panels and other contoured sections without needing a large backing pad. Because the bristles conform to irregular profiles, they free the operator from switching between flat discs and hand tools on complex shapes. The pack of three keeps a fresh disc ready for the next panel.

Highlights

  • Removes undercoating and sealers fast with 36-grade aluminum oxide
  • Reaches 18000 RPM on right-angle or straight-shaft air tools
  • Bristle design resists loading when stripping high-build coatings
  • Contains no wire filaments for safer surface preparation
  • Pack of three discs for extended job coverage

Specifications

BrandSCOTCH-BRITE

Questions about this item

How do I fit the 3-inch bristle disc onto my right-angle air tool without it coming loose?

Use the integral centre hole to mount the disc on the tool’s spindle, then tighten the supplied retaining nut to the tool manufacturer’s torque value; the purple 36-grade bristles must run true at up to 18000 RPM so any wobble will cause premature wear.

When will the aluminum-oxide bristles need replacing?

Replace the disc once the bristle tips no longer cut rust, seam sealer or rubberised undercoating down to bare metal — the unique bristle design resists loading, so life ends when abrasive height is exhausted rather than when the face clogs.

What is the first limit I hit if I run the disc continuously at 18000 RPM?

The 18000 RPM maximum speed is the hard limit; exceeding it risks bristle separation and loss of the no-wire-filament safety advantage, so sustained work must stay at or below that rating.

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