Epoxy powder coating is nothing but thermosetting powder coating. For most durability thermoset materials are used. Thermosets are the solid resin substance and when this resin is heated; it melts, flows and can crosslink with one another or other reactive substances to form compounds with higher molecular weights.
Epoxy Powder Coating Process
FBE coating process normally requires following steps.
The steel surface is cleaned thoroughly.
The cleaned metal part is heated to the recommended temperature.
The application and curing stage.
Steel surfaces are cleaned with blast cleaning method to removes rust, scale, slats, etc. It is very important to remove grease or oil contamination prior to blast cleaning.
FBE Powder Application
Heating is achieved by either induction heating or oven heating. The metal part is heated with required FBE coating application temperature. The FBE powder is then applied onto metal surface part with the help of powder coating gun. The charged powder particles then melt into a liquid form. Internal surfaces of pipes are coated using spraying lances, which travel from one end to the other end of the heated pipe at a uniform speed, while the pipe is being rotated in its longitudinal axis.
Application and Curing
The resin part then goes for cross-linking under hot condition which is known as Curing. Complete curing is done either by residual heat on the steel, or by the help of additional heating sources. The epoxy resin is cross linked with polyester which results into blend and hybrid substance which provides you excellent flexibility and resistance. The blend is very much effective when applied as an electrostatic spray and has a range of applications similar to those of thin film epoxies.
Benefits of Epoxy Powder Coating
Very less of waste of material.
Ease of application.
Very fast application.
Tough, durable, lasting coating for pipes.
Epoxy powder coating is widely used today and most commercially successful application running in the industry.