For information on how to correct these defects contact paint performance consulting. 1 powder peel off 2 dust particles observed 3 orange peel 4 color shade difference one compared to other panels.
By looking at the issue you have you can trace the problem back to a likely cause.
Powder coating paint defects. When using powder coatings problems occur before during and after powder application which we are going to discuss briefly in the articles on powder coating defects and solutions. A customer returned parts due to heavy and inconsistent coating. Following problems on mild steel panels powder coating are observed after the process is complete.
Powder coating problems can be caused by issues with pre treatment powder supply powder application curing or equipment. Proper pre treatment is fundamental to having the desired final coating quality. In this article here you will find examples of common coating defects and how to correct them.
If a substrate is defective and has entered the coating. In this guide we look at some of the most common powder coating defects and causes and how to solve these powder coating problems. Primarily we will expand problems related to the pre treatment stage.
Powder coating surface defects and how to avoid them. Problems defects in powder coating. Rejects from coating lines can come from a substrate defect a surface contaminant or a coating material defect.
Powder coating automotive assembly plant paint shops plastic parts molding and painting facilities metal parts casting and painting facilities. Rejects are the bane of any job shop s existence when applying powder coatings. Powder coating defects come from several different types of coating processes.
From orange peel sagging or opacity issues ifs cover the different types of defects powder appearance issues how they occur and how to prevent them. An action report identified the problem as resulting from the faraday effect a common occurrence in powder coating caused when charged powder does not flow fully to a tight area because electricity will not readily follow the more resistant path. Process controls should be implemented upstream of the coating line to prevent a defective substrate from entering the line.
A discussion started in 2002 but continuing through 2019.