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The 3M Body Repair System combines 3M's best resources, 3M and Bondo, demonstrating how they work together to achieve an excellent body repair. The Body Repair System is a four-stage process designed to simplify the body repair process, making repairing anything from rust to dents easier.
Dents can make the vehicle look bad and reduce its value. Because paint is often damaged when metal is dented, rust can form, eventually ruining the metal. Learn More »
Once rust has begun, even if it starts in a very small area, it can rapidly expand and begin to bubble painted areas, or even weaken the structure of the panel.
Clean and dry the repair area.
Clean the damaged area with 3M Adhesive Remover and dry well.
Mask the area.
Using 3M Automotive Masking Tape, mask around the repair area
Strip paint and featheredge.
Use 24-80 grit to sand to metal in the dent and use 80 grit to sand three to four inches around the dent area.
3M 2-inch Grinding/Sanding/ Finishing System
Repair dented area.
Use an adhesive patch, fiberglass cloth or fiberglass mat along with fiberglass resin to bridge holes and provide structure for damaged areas.
Mix and apply reinforced filler.
Use reinforced filler to strengthen repair and smooth repaired area.
Sand reinforced filler.
Use 80-180 grit sand paper to sand reinforced filler.
Mix and apply body filler.
Use lightweight body filler to fill damaged area.
Bondo Body Repair Kit, quart
Bondo Lightweight Filler, gallon
Sand body filler.
Use 80-180 grit sandpaper to sand filler.
3M Clean Sand Performance Sandpaper, Assorted
Mix and apply glaze or spot putty.
Apply glaze and spot putty to fill pinholes.
Bondo Glazing & Spot Putty, 3 oz.
Sand glaze and spot putty.
Use 180-320 grit sandpaper to smooth and feather for an even transition to surrounding paint.
3M Performance Sandpaper, 3 2/3" x 9", 320 grit
Apply and sand primer.
Apply primer of choice, sand with 320-600 grit sandpaper.
3M Wetordry Sandpaper, 600 grit, 3 2/3" x 9"
Scuff blend area.
Scuff the surrounding paint that will be blended using 800-1000 grit sandpaper.
3M Performance Soft Sanding Sponge, 800-1000 grit
Apply base coat and clear coat.
Apply base coat and clear coat of choice.
Use 1000-3000 grit sandpaper to remove light scratches or minor defects in clear coat. Use rubbing compound, then scratch remover to buff out sand scratches for gloss finish.
3M Wetordry Automotive Sandpaper, 2000 grit
A recognized leader in research and development, 3M produces thousands of innovative products for dozens of diverse markets. 3M's core strength is applying its more than 40 distinct technology platforms – often in combination – to a wide array of customer needs.
Except where prohibited by law, 3M will not be liable for any loss or damage arising from the 3M product, whether direct, indirect, special, incidental or consequential, regardless of the legal theory asserted, including warranty, contract, negligence or strict liability.