Rust & dents

Good preparation is essential for a flawless finish. The Auto-K range has everything you need for all important work steps. Please observe our recommendations to ensure you achieve excellent results.

How do I repair a rusted through area on a car

How do I remove dents from a car

Removing dents and rust

After cleaning and masking the area with masking tape, remove the dent in the damage area. Remove rusty metal. Use a hammer/pliers to bend the edges inwards. Use the rust eraser for smaller rust spots, and sand paper for larger areas.

Sanding edges

Sand the edges of the (rusty) damaged area thoroughly with dry sanding paper P80 to remove rust and old paint until a bare surface is created. Sand the edges up to 4-5 cm around the area with dry sanding paper P180. Wipe any sanding dust off with a soft cloth.

Repairing rusted-through areas

Cut the fibre-glass fleece to size so that it finishes along the edges of the damaged area. Coat the edges with polyester resin. Position the fleece that is soaked in polyester repair resin and carefully press onto the damaged area from behind.

Filling and sanding

After a drying period of about 20-30 minutes, apply universal filler to even the area out. Apply a thin and even layer of filler with a scraper, then sand the hardened filler with sanding paper P120 until smooth.

Applying an anti-corrosion primer

Treat the dust-free, bare metal edges of the former rusty area with an anti-corrosion primer. Spray filler can be used first to fill or even out the area.

Filler/primer and wet sanding

Prime the rust-protected damaged area with several cross-coats of filler/primer ensuring that a thick layer is created. Once dry, sand with wet sanding paper P400 or at least P600 until smooth. 


Apply a top coat using Auto-K product; see Auto-K instructions, professional tips Top coat & original colour tone