Foreign particles embedded in paint film.
- Inadequate cleaning of the surface to be painted.
- Dirty spraying environment.
- Inadequate air filtration or unfiltered air entering the booth.
- Dirty or unsuitable work clothes that contain dust, lint or fibres.
- Particles from deteriorated air supply lines.
- Using a poor grade masking paper.
- Dirty spray gun.
- Removing the vehicle from the spray booth before the finish is 'dust free'.
- Sand with 1200 or finer grit sandpaper, then compound and polish to restore gloss.
- Or, sand smooth and refinish.
- Thoroughly blow off around windows, doors, jambs, hood, trunk, mouldings, engine compartment, and wheel openings.
Wipe the surface to be painted and the masking paper with the tack rag.
- Maintain a clean working area.
- Install proper air filters. Repair any leakage found in the spray booth due to poor fitting doors, gaskets, seams or filters.
- Wear a lint free paint suit during the spray application.
- Use quality masking materials. 'Wicks' found on newspaper can break away and blow into the wet paint.
- Repair or replace defective air lines.
- Properly clean and maintain spray equipment.
- Vehicle should be kept in a clean environment until finish is 'dust free'.