Orange Peel Powder Coating Defect Pictures

In order to ensure that a powder coating operation is producing the highest quality defect free finish however certain steps must be taken to incorporate basic contamination control techniques into the finishing.

Orange peel powder coating defect pictures.

Moisture absorption forms the substrate especially from putties and fillers before painting. The term orange peel refers to a bumpy coating surface that resembles the surface of an orange. Knowing orange peel in powder coating is not ideal it is important to know some of the. Good contamination control prevents defects from start to finish.

Rejects are the bane of any job shop s existence when applying powder coatings pulling apart out of the oven only to see whorls of orange peel powder sections where the coating has sagged or opacity issues bring a particular kind of dread alongside the question of what happened. Orange peel is when the surface of a coated product doesn t have an even smooth appearance to it after the coating is applied. Defined as an uneven texture of smooth finish products that resembles the skin of citrus fruit. When powder coating jobs go wrong.

When powder coating jobs go wrong. Excessive is in the eye of the beholder of course. One of the most common quality issues with powder coating is an orange peel effect. Rejects are the bane of any job shop s existence when applying powder coatings pulling a part out of the oven only to see disappointing orange peel spoiling the powder coated finish sections where the coating has sagged or opacity issues bring a sigh of frustration alongside the question of what happened.

These areas with too much powder will suffer from back ionization and from defects like orange peel. Back ionization can form when your gun to part distance kvs and microamps aren t monitored closely enough. Posted by on 22 september 2017. It is not considered a defect if it is not excessive.

Coating defects fault finding coating defects car straight out of the oven into a cooler room. It may be barely noticeable or very obvious. Page 5 of 35 issue date. Posted by on 11 july 2017.

Powder coating defects pdf format powder coating. This is when issues arise in the actual process of applying a powder coating to a substrate the result of which is then a reject. Whether your powder coating or liquid coating orange peel is usually not desirable because it creates a poor overall finish appearance when your all done coating your product. The level of orange peel is visually determined by comparing to industry standards typically the powder coating institute pci visual smoothness standards.

One of the most common causes for this is the quality of the powder coating you are applying mainly the particle size distribution as described by shane.