Troubleshooting – Powder Coating finish-cured film physical properties

PROBLEM , Cause and Remedy

PROBLEMCAUSEREMEDY
Poor impact resistance/poor flexibilityUnder curedIncrease oven temperature (or):
Increase dwell time in oven
Poor cleaning or pretreatmentCheck pretreatment equipment and chemicals
Film thickness too highReduce film thickness by adjusting application equipment
Change in substrate thickness or typeCheck substrate with supplier
Powder resin type or formulaCheck with powder manufacturer
Poor adhesionPoor cleaning or pretreatmentCheck pretreatment equipment and chemicals
Change in substrateCheck substrate with supplier
Under curedIncrease oven temperature (or):
Increase dwell time in oven
Powder resin type or formulaCheck with powder manufacturer
Poor corrosion resistancePoor cleaning or pretreatmentCheck pretreatment equipment and chemicals
Under curedIncrease oven temperature (or):
Increase dwell time in oven.
Poor chemical resistanceUnder curedIncrease oven temperature (or):
Increase dwell time in oven.
Powder resin type or formulaCheck with powder manufacturer
Poor pencil hardness/poor abrasion resistance. Under curedIncrease oven dwell time
Powder resin type or formulaIncrease oven dwell time.
Check with powder manufacturer
Troubleshooting - Powder Coating finish-cured film physical properties