3M™ Sandpaper, 40 grit, 32118

This 40 grit product is made with aluminum oxide mineral, a tough and versatile abrasive. Designed for hand sanding, each 9” x 11” sheet can be cut to the size of your sanding block. During Stage 1 of the 3M Body Repair System use the 40 grit sheets to quickly strip paint from metal, plastic or fiberglass panels. Follow this step with 80 grit sandpaper to refine the 40 grit scratches. This will allow the body filler to adhere well to the panel.

Product Details:
  • 40 grit sandpaper used for stripping paint from metal, plastic or fiberglass surfaces
  • For use with PN03148 or PN03149 3M™ Sanding Block
  • Made with aluminum oxide
  • Contains 5 sheets of 9 X 11 inch sandpaper
  • Use during Stage 1 of the 3M Body Repair System

Additional Information
3M Part Number 32118
UPC 51131321182
Case Quantity 20 pack per case
Case Inner Pack 5 sheets per pack
Width 9 inches
Length 11 inches
Performance Level Good
Backing D Weight Paper
Grade 40 Grit
Product Form Abrasive Sheet
Color Brown
Sanding Surface Clear Coat, Fiberglass, Filler, Metal, Paint, Plastic
Abrasive Mineral Aluminum Oxide
Attachment Method None
Sanding Method Hand, Machine
Wet or Dry Dry
Size 9 inches x 11 inches
When a project necessitates exceptional results, look to 3M™Sandpaper for your surface finishing solutions. Aluminum oxide is a popular choice among industrial professionals because of its cut-rate and long life. This mineral is a tough, durable abrasive that self-fractures to expose fresh cutting edges in use, whereas traditional abrasives quickly wear down with use. Due to its high cut-rate, hardness, strength, and low heat retention, aluminum oxide is highly effective for sanding and finishing.

3M™ Sandpaper, 40 grit, is an essential part of the 3M Body Repair System.

About the 3M Body Repair System

The 3M Body Repair System connects two great brands and demonstrates how 3M & Bondo® branded products work together to achieve an excellent body repair. The four-stage process highlights the different steps for repairing everything from a paint scratch to a small dent to a patch of rustred out metal.

The stages explain how products from different categories – such as abrasives, tapes, body filler and tools – work together during each stage of a repair.
Stage 1 products are for removal of material in damaged areas in preparation for treatments and repair. These products help mask the area and remove paint and rust. Stage 2 products are for removing dents, treating and repairing rust, reinforcing holes in preparation for filler application, pulling dents patching holes and making small repairs.

Stage 3 products are for applying body filler, feathering, sanding, and re-applying. These products are for preparing the surface for primer. Stage 4 products are for the final step -- sealing with primer, paint and polish.

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