How to Remove a Small Bubbled Rust Spot

Removing a small bubbled rust spot can be challenging. If moisture works its way behind the sheet metal, it can cause the metal to oxidize. If the metal oxidizes, it l begins to rust. Sometimes, the rust isn't apparent. The first signs of rusting metal are a bubbling up of the paint under the rust spot. As soon as you see this, or rust coming through the bubbled rust spot, remove it as quickly as possible before it spreads.

Things You'll Need

• Belt sander
• Rust converter w/ applicator
• Soap
• Water
• Sponge
• Lint-free towel

Instructions

1. Sand the bubbled rust spot with a belt sander. Remove all of the loose rust and create a smooth surface. You might not remove all of the rust. This is OK as long as you have a smooth surface to work on.

2. Wash the area with soap and water using a sponge.

3. Dry the area with a towel.

4. Apply a liberal amount of rust converter to the rusted area and allow it to dry into a black primer.

References

• Auto Body Repair Technology - 5th Edition; James E. Duffy, Cengage Learning; 2009