POUSSIERAGE
Description of problem:
The sprayed paint dust particles land on the painted surface in the form of a powder.
Causes:
– Spray gun is too far from the painted surface.
– Spray pass is too quick.
– Unsuitable thinner.
– Very high air pressure.
– Incorrect application viscosity.
– Wrong spray gun setting. Small nozzle with a large air cap.
– Ambient air flow is disruptive.
– Spray booth temperature is too high.
Preventive measures:
– Use proper application technique.
– Use appropriate thinner.
– Use correct air pressure.
– Use correct application viscosity according to the manufacturer’s specification.
– Use slower thinner or add a retarder if it is too hot.
– Use correct spray gun setup.
– Avoid turbulence.
Remedy:
– Ground coats:
Remove with thinner or wait until dry and sand topcoats sand with P1200 and polish.
In the case of metallic monocoat finishes (600 series) you should sand and respray.
- Bleeding
- TEMATY SZKOLEŃ
- Drying is too slow
- BULLES SOUFFLURES
- Stripping / Banding
- Fish eyes
- Blistering
- Spider’s web
- ATMOSPHERIC POLLUTION
- CRACKING OR RIPPLING
- Loss of gloss
- POUSSIERAGE
- Rust
- Low gloss
- ADHESION PROBLEMS OF THE CLEAR COAT
- Orange peel
- Clouding
- Pin holing
- Poor adhesion
- SHRINKAGE / EDGE MAPPING
- Poor opacity
- Color offshade
- SOLVENT POPPING
- Whitening
- Runs
- Polish marks
- Sanding marks