How it works
The custom powder coating are based on the system of polymer resins which are combined with pigments, curatives, flow modifiers, leveling agents as well as other additives. The ingredients are melted, cooled, mixed and ground into a uniform powder just like baking flour. The process which is called electrostatic spray deposition is usually used in order to achieve the application of the powder coating to the metal substrate. This particular application method makes use of a spray gun that applies the electrostatic charge on the powder particles which are then being attracted to the grounded part. After applying the powder coating, the parts then enter a curing oven where additional heat is placed on the material. The coating will then react chemically in order to produce large and long molecular chains which results in high cross-link density. The molecular chains produced are resistant to any form of breakdown. This type of application is deemed to be the most common method when applying powders. The powder coatings are also applied to non-metallic substrates like plastics as well as medium density fiberboard (MDF). Sometimes the powder coating is applied when there is fluidized bed application. The preheated parts are first dipped on the hopper of fluidizing powder and then the coating melts and eventually flow out of on the part. You may also need post cure and is dependent on the temperature and mass of the type and part of the powder which is used. No matter what application process you use, powder coatings are relatively very easy to use, cost effective, tough and more importantly it is environmentally friendly.
Durability of the powder coating
The powder coating is a type of a high quality finish which is found on several thousands of products that you actually come in contact with every single day. Powder coating will protect the toughest equipments and machineries and likewise the household items that you depend on daily. It is able to provide a finish that is more durable compared to what liquid paints can offer, while still giving an attractive finish. The products which are powder coated are more resistant to the diminished coating quality which is a result of moisture, impact, chemicals, ultraviolet light as well as other extreme weather conditions. In turn, this will lower the risk of chipping, scratches and corrosion.