Common errors and how to fix it in the process of spraying the paint


Common paint paints during automotive paint spraying
1. Failure to paint by the ankle
General description
The wet paint surface is scratched by small holes. Pitted by silicone. Sometimes we can see the substrate surface at the bottom of the basket.
Reason:
 
  • Unclean grease.
  • Spray paint is not technically correct.
  • The spray does not guarantee technical parameters.
Remedies:
  • Degrease the paint surface thoroughly
  • Spray 1 time before painting, then paint next next.
  • Between the layers, wait long enough.
  • If the paint continues to pour, add Nippon silicone additive.
2. Sticky paint dust.
General description
Small dust particles enter the surface of the wet film and are trapped when the paint film is dry.
Reason:
  • Unclean cleaning before spraying.
  • In the paint spraying process to get dust into the paint room.
  • Painting equipment contains dirt.
Remedies
  • If dust is mild, can be sanded and polished afterwards. If the dust is deep in the paint, the surface is abrasive and repainted.
3. Orange bug
General description
The new paint has less smoothness, the surface is like the shade of an orange.
Reason:
  • The paint material is not guaranteed, the paint components are not in harmony with each other.
  • The spraying technique is faulty, the wind pressure is not regulated.
  • Paint gun, gas tank, ... faulty.
Remedies
  • In most cases, using polishing is sufficient. In severe cases, abrasive and spray repaint.
4. Failure to paint
General description
On the surface of the paint appears paint lines, the thickness of the paint is not uniform.
Reason
  • Uncleaned grease before painting.
  • Non-compliant paint.
  • Improper spraying technique, lack of gas pressure, ...
  • Broken machinery.
Remedies
  • Abrasive paint has dried, then polished. If the paint is much flowing, the surface should be very smooth, then spray paint again.
5. Distortion of the paint
General description
The new paint is painted in color. This error can also occur for both physical and two-component paints.
Reason
  • Gasoline does not guarantee quality.
  • Spray paint is not technically correct.
Remedies
  • Lightweight, can polish the paint. In severe cases, sharpen the defective area and paint again.
6. Local paint color fault
General description
Occurs only with metallic colors. The surface of the paint appears light and dark spots in the spraying process or after spraying.
Reason
  • The composition of the paint is not compatible.
  • Spray paint
Remedies
  • Surface grind and spray repaint.
7. Bite the needle
General description
Small holes with a diameter of 0.5 mm can be observed on the paint surface.
Reason
  • Surface preparation is not good.
  • Spray technology is not guaranteed.
Remedies
  • Abrasive paint until completely removed needle holes, then spray repaint.
8. Explosion-Proof Error
General description
Small dots can be seen on the dry surface.
Reason
  • Petrol
  • Spray paint
  • Device
Remedies
  • Abrasive to remove the solvent explosion spots and spray repaint.
9. Wrinkle type 1 paint
General description
During the spray painting, the substrate is partially dissolved.
Reason
  • Select the type of paint
  • Spray paint
  • CDR, gasoline, additives
Remedies
  • Remove all soluble paint, then repaint the system
10. Other color errors
General description
The color of the painted area does not match the color of the car.
Reason
  • CDR, gasoline, additives
  • Spray paint
  • Device
Remedies
  • Grind the area to be painted, color-corrected and color-corrected.
  • Please contact us for advice if you have a problem during the paint spraying process.

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