Powder coating: polymerization errors

Polymerization of the coating is perhaps the most responsible stage of painting with powder paint. After it, there is no way around it, except to scrape off the paint with aggressive acids with a very dubious result. Therefore, it is better to avoid any what disagreements and accidents.

So what mishaps occur during paint curing?

Possible problems

Many defects occur due to the wrong curing mode: poor adhesion and flexibility, “orange peel”, changes in the level of gloss and color, insufficient resistance to chemicals, a greasy layer on the surface. All these troubles easy to get rid of just by following the technological requirements. Powder coating materials from different manufacturers may have different baking temperatures. If you are changing providers, be sure to ask a specialist about all the nuances of polymerization and carefully read everything written on the box. The Lacover company offers its regular customers audits of the powder coating shop – so it will be much easier for you to understand the shortcomings of your production process and avoid low-quality application.

Probable reasons

The root of any defect can be any deviation from the usual technology. Insufficient heating damages flexibility and adhesion, makes it brittle. Because of this, the polymer film will not provide sufficient protection against aggressive chemicals and ordinary moisture. But it will become excessively shiny. A high temperature will affect the color and cause a low gloss, because it is the pigment in the paint will simply burn. A greasy surface is formed when there is poor air circulation in the oven. “Orange peel” is caused by a number of factors — heating is key here. Overbaking and staying in the curing chamber for too long will be the most common causes of such a defect.

So, there are always enough problems. They are different in each individual case, so you need to pay close attention to all the details.

“Lacover” supports you on the way to the ideal! Our specialists are always ready to help with advice, whose contacts you can find here. A wide selection of colors and varnishes, see the link here. There is a way out of any trouble!