Problem Solving Chart

Sampel picturesProblemsProbable causesSuggested solution
Orange peelHigh temperature of the substrate Reduce the temperature of the substrate
More maturing timeStrictly follow the manual description for coatings maturing process.
High viscosity of the coating materialDecrease the viscosity of the coating material
High air pressure Lower air pressure
SaggingLow temperature of the substrate, the thickness of substrate is too thin or uneven, the surface area of the substrate is too big.Properly increase the preheat temperature to the substrate.
The coating has benn applied too thickly, the volume of spray is too big, the spray gun is too close to the substrate surface, atomization is not sufficient, the speed of spray line is too slowProperly adjust the speed of the spray line, the distance between the spray gun and the substrate suface, the ratio of coating to air in the spray.
Ambient environment: low temperature, high moisture (humidity)Equiped with the apparatus for temperature and dry control in the spray line
Fish eyesCntaminats (such as the oil/grease, foreign materials etc.) on the substrateWash and clean the parts before spray process
Insufficient maturing of coatings, the maturing time is short.Strictly follow the manual for the maturing process
Water in the compressed air caused by the fault of air compressorRepair the air compressor and check the oil/water trap
 High moisture (humidity) environmentEquiped with the apparatus for temperature and dry control in the spray line
Overspray crateringHigh viscosity of the coating materialReduce maturing time or consult our technician

Too much overspray in the application process, during curing process, the topcoat is rapidly cured and the evaporation of interior slovant is too slow

Reduce the thickness of film
Low temperature of coating materialApplication after reaching the proper temperature of coating material
Bubble in coating materialsConsult our technician
Hazing low gloss

Improper pretreatment to the substrate, high roughness after grit blasting process

Redo the pretreatment to the substrate

The maturing time is too long or the coating is going to bad cause by the low pH value.

Reduce maturing time and consult our technician
High preheating temperature to the substrateReduce preheating temperature to the substrate
 High moisture (humidity) environmentEquiped with the apparatus for temperature and dry control in the spray line
Chromatic aberrationThe cured film thickness (main reason)Apply the thickness of film in proper range
Coating maturing with insufficient dispersing to  A liquidCompletely disperse the A liquid before maturing process
Spray application with insufficient dispersing to matured coating which is been long time for storageCompletley disperse the matured coating before spray application