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Can You Wax Over Rust? [Solved]
You should always wash your car before applying wax. Wax acts as a paint sealant and will seal any dirt, grease, or rust to your car.18 Mar 2014
Why You Should Wax Your Car (Restore and Protect)
Waxing
How to Protect and Preserve Patina or Rust
We
Woolwax® Black Undercoating applied over existing rust.
This is our Woolwax® undercoat is black being applied