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The 3M 7100122791 is a Purple Finishing Film Hookit abrasive disc used for fine surface preparation and finishing work on paint and gelcoat surfaces. Designed for hook-and-loop (Hookit) attachment, it mounts quickly to compatible backup pads for use with orbital and random orbital sanders. At a P1000 grit rating, it is suited for scuffing blend areas prior to painting and for removing light surface defects including runs, dust nibs, and excess orange peel before compounding. The 6-inch diameter fits standard 6-inch Hookit backup pads. Sold by the box with a minimum order quantity of one.
This disc is used in automotive refinishing and body shop environments where controlled surface prep is critical before a paint or clearcoat application. It is appropriate for both single-stage and basecoat-clearcoat systems on vehicle panels and for gelcoat finishing on marine and composite surfaces. The P1000 grit makes it a go-to choice during the blend and scuff stage, where cutting too aggressively would damage the finish. It can be used wet or dry depending on the backup system in use.
Designed for use with 3M Hookit backup pad part number 05551 and interface pad part number 05777. Fits standard 6-inch hook-and-loop orbital and random orbital sanders used in automotive and marine refinishing applications.
Install the disc onto a clean, dry Hookit backup pad, ensuring the hook-and-loop surface seats fully before use. Power down and disconnect the sander before changing discs. Follow facility and coating manufacturer guidelines for surface prep grit sequences. Dispose of used abrasive discs per local shop waste procedures.
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