Filtering Compressed Air For Powder Coating - A Complete Guide
When it comes to powder coating there are a variety of key factors that will impact your production and results; from proper surface preparation, to powder coating selection, to powder application, to the quality of compressed air you use for powder coating, each can have a significant impact on the quality of your powder coating work and how much work you can get done in a given time. Given that compressed air for powder coating will have a significant impact on your results, it is important to understand what must be considered when filtering compressed air for powder coating. We will cover the basics of what occurs when air is compressed, the nature of powder coatings, and how to select the right filter for compressed air that will be used for powder coating.
The process of Compressing Air & What Happens when Air is Compressed
Before selecting an air filter for your powder coating compressed air supply, its first important to understand what happens when air is compressed. When air is compressed any water vapor as well as contaminants are essentially multiplied as a compressor takes a certain volume of air and compresses it to fill a smaller space. Contaminant in the air will be intensified while water vapor will also be increased because the air is heated up by the compressor enabling a greater moisture content to be held in the compressed air than was present prior to being compressed. Water and air contaminants can show up in the form of solvent pops, blisters, poor fluidization due to powder clumping together, and a variety of other imperfections in your powder coating finish which is why it is critical to properly filter your compressed air for powder coating.