Dos and Don’ts of Powder Coatings for better results

  • Clean & Dust free atmosphere of work place. Clean equipment and booth before commencing work or while changing the colors. Keep separate hoses for plain & Structure or Texture finishes to prevent contamination of additives in the plain finishes
  • Do not mix powders of two different formulations
  • Inspect area for accumulated dirt on roofing structures from falling on objects
  • Drain the water from air filters before commencing work and check the moisture free air supply to the equipments
  • Reclaimed powder should be used in proportion of not more than 15 – 20 %, that too only after sieving thoroughly with 125 mo. Mesh sieve cloth. Metallic powders are not recommended for recycling, as that could result in shade or finish variance
  • Store the powders at room temp, in dry places or preferably at temperature, below 25 ° C
  • Check whether the proper grounding is provided to spray booth. Improper grounding will result in powder not adhering to component & powder loss
  • Check pointage of chemicals in pretreatment tanks at regular intervals and clean it regularly
  • Keep article dust/dirt free after pretreatment and before coating
  • Keep checking articles for proper pretreatment i.e. Zn Phosphate/ Iron Phosphate or Chromate Coating
  • Metallic Mozals should be used for metallic powders for better results. Take sample panel for metallic or antique reclaimed powder before actual use. Keep gun voltage <100 kv for Regular powders & <60 kv for Metallic Powders
  • Keep the Gun tip at a distance of 8 to 12 inches from component to be coated get maximum transfer efficiency which helps achieve better coverage
  • Reduce voltage & powder output while coating edges/grooves of U-type channels & areas with powerful back ionization effect

Thin powder coatings films can cause the following problems

  • Reduced corrosion resistance
  • Reduced chemical resistance
  • Pinhole rusting
  • Reduced electrical insulation
  • Inconsistent or incorrect appearance, texture, and gloss
  • Orange peel
  • Reduced edge coverage
  • Inconsistent or incorrect color

Thick powder coatings films can cause the following problems

  • Reduced impact resistance
  • Reduced flexibility
  • Reduced chip resistance
  • Inconsistent or incorrect appearance, texture and gloss
  • Orange peel

The information is true to the best of our knowledge. However, no guarantee of results is implied since conditions of use are beyond our control.