problems and solutions

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problems and solutions
Problems and Solutions

1. Surface crater formation

Problem : Insufficient pre-treatment (oil and chemical residues)
Solution : Check the pre-processing, information must be obtained from the supplier

Problem : Contamination with silicone oil
Solution : Silicone-free cleaning agents should be used

Problem : The part being painted is damp
Solution : Drying time or temperature should be increased

Problem : Contamination with a different paint powder
Solution : When changing colors and types, the equipment must be cleaned and the carrier air in the oven must be checked

Problem : Reverse ionization effect
Solution : Check ground, use tribo gun if possible

Problem : Paint spraying
Solution : : Mixing the paint with another incompatible paint, cleaning must be performed on the transition to the new paintwork due to surface treatment, checking the surface processing parameters

Problem : Yellow in paint
Cause : High oven temperature or longer oven time,
Solution : Proper temperature must be maintained by measuring the oven, long-standing in the oven must be avoided

2. Formation of needle holes on the surface

Problem : The humidity of the dust paint is high
Solution : The storage temperature must be checked and stored under the conditions specified on the product label

Problem : Lice formation, large and small protrusions on the paint surface
Cause : Cleaning cloths, defects on the material, foreign material falling to the surface in the application cabinet or in the oven, the system is due to cleaning
Solution : Surface cleaning must be checked, suitable size sieve according to paint

Problem : Contamination with other mismatch of dust
Solution : The equipment must be cleaned when changing colors and types

Problem : Gas removed from the paint
Solution : Film thickness must be reduced

3. Frame effect (high film thickness in the corners of the part)

Problem : High voltage
Solution : Align the voltage to the part you are working on.

Problem : Incorrect position of the revolver
Solution : The distance of the revolver to the workpiece must be optimized

Problem : Film thickness is not homogeneous (especially on texture and metalline coatings)
Solution : Revolver position and feed must be properly made

Problem : Stuck or moistened paint
Solution : Air pressure must be increased and mixed manually. The humidity of the compressed air is controlled

4. The paint does not stick to the surface

Problem : Oil, water, surface treatment and chemical residues
Solution : The component surface must be checked and cleaned before painting

Problem : Too much film thickness and paint flowing from the corners of the part
Solution : Check the operating conditions. Film thickness must be reduced

5. Orange image formation on the surface

Problem : Film thickness too high or too low
Solution : The operating conditions must be checked

Problem : The oven takes a long time to warm up
Solution : Oven temperature must be increased

Problem : High voltage
Solution : : Align the voltage to the part you are working on.

Problem : Reverse ionization
Solution : -Voltage must be reduced
-The earth must be checked
-The distance from the revolver to the material must be increased

Problem : Paint has been held for a long time or has been stored under inappropriate conditions
Solution : The storage temperature must be checked and stored under the conditions specified on the product label

Problem : Contamination with another mismatch of dust
Solution : Equipment must be cleaned when changing colors and types

6. Color or brightness of paint differs

Problem : Film thickness varies
Solution : Try to sync film thickness for each point

Problem : Paint baking conditions vary
Solution : Oven operation must be optimized dust paint mixing with a different powder paint Equipment must be adequately cleaned when changing paint color and genre, attention to color consistency when changing paint

Problem : Oil, water, surface treatment and chemical residues
Solution : The component surface must be checked and cleaned before painting

7. Combustion on film (fog and mist appearance on paint film)

Problem : Dust paint mixed with a different powder paint
Solution : When changing paint color and genre, the equipment must be adequately cleaned and color-coded when changing paint

Problem : Oil, water, surface treatment and chemical residues
Solution : The surface of the part must be checked and cleaned before painting

Problem : Vomiting of additives
Solution : The temperature and duration of the oven must be checked and the temperature or time must be increased. If the problem persists, contact the manufacturer.