Fusion bond epoxy coating, or FBE pipe coating, is an extremely durable method used to protect lengths of linepipe, typically underground, from corrosion and damage. It has become a worthwhile method of protection due to its reliability and ease of application. A pipeline supplier can supply whatever information you need to know about FBE pipe.
What FBE Coating Is
FBE pipe coating consists of at least two elements: the resin (epoxy) and the hardener or curing agent. The curing agent used will determine the final aspects of the coating, such as its density, flexibility and chemical resistance. Additional properties can be added to the coating by using fillers or extenders to affect its hardness, thickness and more. The FBE pipe coating starts as a powder but becomes liquid and bonds to steel surfaces when heated, making it ideal for covering many types of products such as linepipe, fittings and connections.
How FBE Coating Is Applied
Once the steel surface is cleaned of any particulate that might impair the coating’s ability to bond, the steel is heated to the needed temperature to “melt” the coating elements, typically 356-482 degrees Fahrenheit. The melted coating spreads over the surface of the linepipe, and the continuing application of heat causes the coating to harden or “cure” onto the steel, creating a solid, near-impermeable coating on the surface, often with a thickness of little more than a few millimeters.
Even with such a thin coating, FBE pipe can be created to withstand certain elements such as moisture, soil acidity and extreme temperatures. A local pipeline supplier should have the most accurate information about the type of linepipe or FBE pipe to fit your needs and location.
[Photo by: Joe Lodge]
