Blister
Development of hollow bubbles or water droplets in paint film.
The Causes
Improper cleaning of moisture before repainting
- Insufficient drying time after wet sanding of polyester putty
Water / oil droplets in compressed air
Wet sanding on bare metal
How to Fix
- Sand & clean substrates thoroughly with Nax Degreaser
- Repaint with Alternative Products listed
- Remarks: Use dry sanding for polyester putty
- Sand to remove affected area and repaint