Fusion bonded epoxy(FBE) coating, also known as fusion-bond epoxy powder coating and commonly referred to as FBE coating, is an epoxy-based powder coating that is widely used to protect steel pipe used in pipeline construction from corrosion. FBE coatings are thermoset polymer coatings. The name fusion-bond epoxy is due to resin cross-linking and the application method, which is different from a conventional paint.
The resin and hardener components in the dry powder FBE stock remain unreacted at normal storage conditions. At typical coating application temperatures, usually in the range of 180 to 250 °C (356 to 482 °F), the contents of the powder melt and transform to a liquid form. The liquid FBE film wets and flows onto the steel surface on which it is applied, and soon becomes a solid coating by chemical cross-linking, assisted by heat. This process is known as “fusion bonding”. The chemical cross-linking reaction taking place in this case is irreversible. Once the curing takes place, the coating can't be returned to its original form by any means. Application of further heatingwill not “melt” the coating and thus it is known as a “thermoset” coating.
The advantage of the FBE coating pipe is convenient to spraying, no pollution, excellent resistance for high-temperature (-40°C to 85°C);
High strength and anti-bending performances;
Strong adhesion, good integrity, anti soil stress and wear.
FBE coated steel pipe usually buried in soil and under water between -40~85°C temperature.
Almost all kind of steel pipes could do epoxy coating, such as
Stainless steel pipe
ASTM A312, ASTM A269 stainless pipe
Carbon steel pipe
API 5L line pipe from Grade B to Grade 80
ASTM A53 pipe (Hot dipped galvanized steel pipe)
ASTM A106 pipe
ASTM A252 pipe
ASTM A134 and A135
ASTM A333
Alloy steel pipe
ASTM A335
Nickel Alloy pipes
CRA clad or lined pipe
| Outer diameter of steel pipe(mm) | Length of steel pipe(mm) | Type of anti-corrosion | Processing capacity(m2/h) |
| External: φ426mm～φ1620mm | 8,000mm～18,000mm | 3PE/FBE(external+internal) | ＞400m2/h |
| Internal: φ711mm～φ1620mm |
The advantage of the FBE coating pipe is convenient to spraying, no pollution, excellent resistance for high-temperature (-40°C to 85°C);
High strength and anti-bending performances;
Strong adhesion, good integrity, anti soil stress and wear.
FBE coated steel pipe usually buried in soil and under water between -40~85°C temperature.
