is essential prior to the powder coating process. This is an environmentally friendly process compared with fluid-based coating methods since it does not use solvent, releases very low amounts of VOC, and generates few waste materials or hazardous chemicals. For every coating that comes out perfect, there will be a reject down the line somewhere. Orange peel is generally the result of one of two primary problems.
Powder coating defects and causes related to application are the easier issues to solve. The more experience you gain, the risks of a blundered coating are reduced, and we’re here to nudge a … People – Air... Screen your reclaimed powder. During the galvanizing process, gasses can become trapped within the surface coating. If a metal or material can’t hold an electrostatic charge, the powder won’t be able to affix itself to the surface, and it won’t be able to be powder coated.

The powder may be a thermoplastic or a thermoset polymer.

Surface treatment, like galvanizing, can also cause pinholes in your powder coating. Powder Coating Finish Problem 2 – Finish appears unsmooth If your finish appears uneven and unsmooth this is usually due to orange peel happening.
Posted by on 11 July 2017 . Powder coating application problems. Appearance Issues: When Powder Coating Jobs Go Wrong. Powder coating over galvanizing presents it’s own set of problems to the powder coater but nothing we can’t overcome easily with a little knowledge on how to do it correctly. Now, the powder coating process is relatively simple and it is widely used as an environmentally friendly alternative to liquid coating. Posted by on 22 September 2017 Anyone who has ever applied powder coatings knows that it doesn't go smoothly 100% of the time. It is a wonderful way to obtain a nice finish on metal that is very durable. 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? First, the surface is overly prepped or not properly clean, or second the powder was not properly applied or not properly cured. Powder Coating Basics: Powder Coating is the application of a dry powder using an electrostatic method and then heating the component to cure it. The process of Powder Coating sounds very simple; You buy the powder, spray it onto your components using a special type of electrostatic gun, stick it in an oven & hey presto you have a perfectly coated item in your colour of choice!

Sometimes, jobs go wrong. Control airborne contamination. Check out this blog, from our sister brand IFS Coatings, which covers powder application issues, problems …

It is the escape of these trapped gasses that can cause outgassing problems when curing galvanized steel parts that have been powder coated. The powder coating process involves three basic steps: Part preparation or the pre-treatment; The powder application; Curing; Part Preparation Processes and Equipment. Powder Coating Application Issues, Problems & Fixes. Removal of oil, soil, lubrication greases, metal oxides, welding scales etc. In powder coating, preprepared coating powder in the solid form is deposited directly onto the substrate.

Powder coating is a type of coating that is applied as a free-flowing, dry powder.Unlike conventional liquid paint which is delivered via an evaporating solvent, powder coating is typically applied electrostatically and then cured under heat or with Ultraviolet light. The list below names some of the common sources of airborne contamination. We all know applying powder coatings can sometimes be tricky. Powder coatings on metal were first used commercially in the 1960’s to reduce the excessive use of toxic chemicals. Very often problems arise here simply because equipment is on the wrong setting or has not been properly cleaned. Below are a few of the most common powder coating application problems. Why Does Powder Coating Flake Off, Bubble, Chip or Crack? Metals That Can Be Powder Coated The fine powder used in this painting method is electrostatically charged, which is what attracts it to metal surfaces prior to the curing process.


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