Thermal plasma spraying systems are coatings processes where thermal radiation is emitted from a heated source, generally an electrically conductive metal surface. The “feedstock” to the process is usually heated by either chemical or electrical means. This radiation leaves the surface of the metal glowing and clean. In these cases the metal is coated with a special metal that has the property to absorb and reflect infrared radiation. These special metals are called impregnated metals.
The main benefit of these types of coatings is that they do not allow dust or particles to enter into the working chamber where the coating is being applied. They also provide protection against fire. However, as with all technologies there are some potential disadvantages. There are certain circumstances in which the use of a thermal plasma spray may prove to be hazardous. If the feedstock is too hot or too close to the metal surface it can cause damage.
When using a thermal plasma spray system, like those from Poeton for direct thermal application to a metal surface, it is very important to use the correct powder. Otherwise the coating will be ineffective and will be unable to fully protect the substrate. When mixing the powder and spraying the metal it is important that the two are evenly mixed. Powder coating is especially effective when powder is applied to thin layers of metal, but it can be used on almost any type of metal surface including stainless steel. By using a high quality powder coating system you can ensure that your coating is as good as it can be, providing maximum protection and durability for your application.