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  4. How To
  5. Surface and Rust Out Repair
Auto Repair
Surface and Rust Out Repair

Surface and Rust Out Repair

When left unrepaired, rust quickly spreads. Learn how to repair your car.

When damage to paint or natural aging causes metal to be exposed to the elements, it is only a matter of time before rust will become visible. 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. It is important to sand away any rust and reseal the exposed metal with a primer, base paint and clear coat as soon as possible.

How To Repair A Rust Out with Bondo® Filler

  • Overview

    3M experts demonstrate how to repair rust on your car. When left unrepaired, rust quickly spreads. Proven products like 3M sandpaper and Bondo body filler, give you the confidence to remove and repair rust on your vehicle. 

    You can be confident that you can remove rust and repair the damage the damage to your car when you watch 3M’s video. In this video, we show how to clean the area, sand and remove the rust, mix and apply body filler and sand in stages. This video covers the repair up to the point of using primer and paint.

    • 3M Products in this Video:

      • Bondo® Body Filler with Red Cream Hardener
      • Bondo® Spreader and Mixing Board
      • Bondo® Glazing and Spot Putty
      • Bondo® Glass or other Reinforced Filler
      • Bondo® Self-Adhesive Body Patch (Optional)
      • 3M™ Sandpaper 36 and 40 Grit
      • 3M™ Adhesive Remover
      • 3M™ Automotive Performance Masking Tape
      • 3M™ Sanding Block
      • Respirator
    • Additional Products:

      • Body hammer
      • Drill
      • Gloves

Additional Products for Surface and Rust Out Repair

View All
  • Bondo® Body Filler (261C)


  • Bondo® Glass Reinforced Filler (272C)


  • Bondo® Glazing and Spot Putty (907C)


  • 3M™ Ergonomic Sanding Block (03149)


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