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How to fix rust holes on a car with bondo?

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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. read more

Use coarse-grit sandpaper to remove any paint and primer for a distance of 3 to 4 inches in all directions away from the hole. For the best and longest-lasting repair, all the rust should also be removed. It is likely that some small rust pits will remain, however. read more

You will need to examine carefully all surfaces on your vehicle to identify these rusted areas that will need rust repair. Step 2 – Clean off all Rust, Dirt, Paint, and Debris You will need a strong, bare, and rust-free metal surface for your resin and Bondo to adhere to. read more