FBE Fusion Bonded Epoxy Coating

Decho can produce FBE Fusion Bonded Epoxy Coating for API 5L PSL 1 & PSL 2 Line Pipes from NPS 2" to NPS 56" (60.3mm - 1422.4mm), welcome to contact us if you have such RFQs.

Fusion Bonded Epoxy Coating, also known as fusion bonded 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. A 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 cannot be returned to its original form by any means. The application of further heating will not "melt" the coating and thus it is known as a "thermoset" coating.

FBE can be applied at service temperatures of up to 110 degrees Celsius; the typical thickness is 350 to 450 micrometers. A second layer creates an excellent resistance to damage for the pipeline itself, even under the most difficult environmental conditions.

The codes and standards for FBE Coating are:

CAN/CSA Z245.20, ISO 21809-2, API RP 5L9, AS 3862, SHELL DEP 31.40.30.32.

CAN/CSA Z245.20 External Fusion Bond Epoxy Coating for Steel Pipe

ISO 21809-2:2014 Petroleum and natural gas industries -- External coatings for buried or submerged pipelines used in pipeline transportation systems -- Part 2: Single layer fusion-bonded epoxy coatings

API RP 5L9 External Fusion-Bonded Epoxy Coating of Line Pipe

AS 3862 Standard Specification for External Fusion-Bonded Epoxy Coating for Steel Pipes

SHELL DEP 31.40.30.32 Technical Specification for External Fusion-Bonded Epoxy Powder Coating for Line Pipe

Application of Coating:

Surface preparation of pipe by sandblast cleaning (SSPC-SP10/NACE No.2/ISO 8501-1 Sa 2 1/2/SIS 05 59 00)

Subsequent to pipe heating fusion epoxy powder shall be applied