Orange Peel Powder Coating Defects

These areas with too much powder will suffer from back ionization and from defects like orange peel.

Orange peel powder coating defects.

Orange peel is when the surface of a coated product doesn t have an even smooth appearance to it after the coating is applied. One of the most common quality issues with powder coating is an orange peel effect. When powder coating jobs go wrong. The term orange peel refers to a bumpy coating surface that resembles the surface of an orange.

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. 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. We have divided the top powder coating problems into powder application problems and coating properties problems.

When powder coating jobs go wrong. Below you will find a description of the problem its possible causes and how to solve it. Knowing orange peel in powder coating is not ideal it is important to know some of the. And resembles orange peel specialized coating systems pty ltd www speccoats co za 0861 37 2468.

Powder coating defects and causes related to application are the easier issues to solve. It is not considered a defect if it is not excessive. It can be caused by a film being too thick or thin or other issues. Defined as an uneven texture of smooth finish products that resembles the skin of citrus fruit.

It may be barely noticeable or very obvious. Coating defects fault finding coating defects page 10 of 35 issue date. Coating defects fault finding coating defects page 1 of 35 issue date. Hi as described orange peel is in fact a surface defect.

Orange peel is short or long waviness of the powder coating after curing. Back ionization can form when your gun to part distance kvs and microamps aren t monitored closely enough. Posted by on 22 september 2017. Excessive is in the eye of the beholder of course.

Powder coating application problems.