Thursday, May 31st, 2012

1.Poor Mechanical Properties and Chemical Resistance Cause: Too high or Too low curing temperature or time Solution: Confirm and check with powder coating supplier Cause:Oil,grease,extrusion oils,dust on the surface Solution:Optimize pretreatment Cause:Differing materials and material colors Solution:Insufficient pretreatment Cause:Incompatible pretreatment and powder coating Solution:Adjust pretreatment method,consult powder supplier 2.Greasy Surface(Haze like film on the surface which can be wiped off) Cause: Blooming effect-white film on the powder surface,which can be wiped off Solution:Change powder coating formula,increase curing temperature Cause: Insufficient airRead More …