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3M™ Body Repair System: Rust Repair: Fill
Mask the area, remove paint and rust.
Pull dents, patch holes and make small repairs.
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Rust Repair Steps: Fill
4. Repair dented area. Use an adhesive patch, fiberglass cloth or fiberglass mat to bridge any holes.
5. Mix, apply and sand reinforced filler. Use reinforced filler or fiberglass resin to repair holes or rust and provide structure. Use 80-320 grit 3M sandpaper to sand reinforced filler.
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