Description of problem:
Excess paint applied on a vertical or inclined surface doesn’t
hold and runs along side the panel.
– Spray gun too close to panel.
– Spray pass is too slow.
– Wrong spray gun setup (nozzle too wide or air cup too small).
– Low air pressure.
– Incorrect viscosity.
– Bad application conditions (it is too cold or air circulation is lacking).
– Not enough flash off times between coats.
– Thinner too slow or too much retarder is used.
– Hardener is too slow.
– Paint is sprayed over dirty or oily surface.
– Temperature of paint is too low.
– Use correct hardener and thinner.
– Ensure that spray gun is in good working order.
– Warm object and material up to room temperature.
– Use correct air pressure.
– Avoid thick coats and observe flash off times.
– Allow some time before turning up the temperature in the spraybooth.
– Sand and polish.
– Sand and repaint.
- TEMATY SZKOLEŃ
- Drying is too slow
- BULLES SOUFFLURES
- Stripping / Banding
- Fish eyes
- Spider’s web
- ATMOSPHERIC POLLUTION
- CRACKING OR RIPPLING
- Loss of gloss
- Low gloss
- ADHESION PROBLEMS OF THE CLEAR COAT
- Orange peel
- Pin holing
- Poor adhesion
- SHRINKAGE / EDGE MAPPING
- Poor opacity
- Color offshade
- SOLVENT POPPING
- Polish marks
- Sanding marks