Ral5005 Powder Coating/Tinta em po Smooth Glossy for Rackings
Uses of powder coating
From the shelf grills in refrigerators to the handrail on the office stairs, powder coating is used in thousands of applications to give products more visual appeal, a more pleasant tactile experience, and sometimes different properties in terms of electrical and heat conductivity.
Today, we can also use a fluidized bed application process, as pioneered by German scientist Dr Erwin Gemmer. Here the item is heated beyond the melting point of the powder, but instead of powder being applied to the object, the object is then dipped into the powder, melting and bonding the powder as a result.
Thermoset Powder
It is during this process that thermoset powders show why they are so useful. As the powder heats and melts, it flows around the surface of the object being coated, and undergoes a chemical change called cross-linking, which forms a tough, solid surface that protects the object being coated.
It is this process, with the chemical change, that make thermoset powder an effective coating for all kinds of objects, providing a number of protective qualities as well as visual appeal. The exact nature of the protection depends on the type of thermoset powder being used, with different formula being chosen depending on the requirements for the coating project.
There are several types of thermoset powder, derived from epoxies, acrylics, hydroxyls (polyester) and carboxyl (polyurethane) groups, although the most common are epoxy and polyester based options. Epoxy resin based thermoset powders form a tough impact resistant coating that has excellent corrosion resistance, however they also tend to display poor UV resistance, so are most frequently used for internal applications as the color and gloss finish tend to degrade quite quickly when exposed to direct sunlight.
Polyester-based coatings share the same tough performance once cured, but are highly UV resistant, making them an ideal choice for outdoor applications. Other forms of thermoset powder have a variety of performance capabilities that are used for specific situations.
Audited Supplier 
){kind=link}