3PE vs FBE Coating: Which Anti-Corrosion System Fits Your Pipeline?

Layer structures, typical thicknesses and the soil/temperature selection logic for 3PE, FBE and 2PE anti-corrosion coatings on buried oil, gas and water pipelines.

• Layer structures, typical thicknesses and soil/temperature selection logic.
• Key figure: 3PE typical total thickness: 2.5–3.7 mm
• Key figure: FBE typical thickness: 300–500 µm
• Key figure: Our coated range: OD 21.3–630 mm; DN100–DN450 most requested
• What is 3PE: 3PE is a three-layer polyethylene system: an FBE primer for adhesion and corrosion protection, a copolymer adhesive mid-layer, and a polyethylene outer layer for mechanical protection. It is the most common anti-corrosion coating for buried oil and gas pipelines.
• What is FBE: FBE (fusion bonded epoxy) is a single-layer epoxy film, typically 300–500 µm thick, applied as powder that melts and cures onto the heated pipe. It is thin, tough against handling damage and performs well at higher operating temperatures.
• Thickness and performance: 3PE builds to a typical total of 2.5–3.7 mm, giving strong resistance to aggressive soils and mechanical damage during backfill. FBE is a thin film — better where the coating must survive transport and where the line runs hot.