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HMG Troubleshooting

Blooming (Blushing)

Description

Milky / Dull effect on paint film

Causes

  1. Excessive humidity levels
  2. Use of fast thinners
  3. Cold draughty sprayshop
  4. Poor air movements
  5. High spraying air pressures

Prevention

  1. Ensure booth is at 68°F - 72°F
  2. Use a good quality retarder / non-bloom thinner
  3. Reduce spraying pressures

Rectification

  1. Minor cases can be polished or compounded
  2. Slow retarder thinners can be sprayed over the job to rectify
  3. Severe cases have to be flatted and re-coated observing the above