The 3LPE coated seamless steel pipes ensures long-term reliability in extreme environments due to its excellent corrosion resistance and wear resistance. Its three-layer structure consists of: fusion-bonded epoxy (FBE), copolymer adhesive, and high-density polyethylene outer sheath. This composite structure endows the pipeline with advantages such as corrosion resistance, damage resistance, and adaptability to complex working conditions, making it widely used in fields such as oil and gas transportation and chemical facilities.

3-Layer Polyethylene is a multilayer coating that is as commercially recognized by its shortened name - 3LPE. As the name suggests, this coating constitutes of three functional components: Layer 1: A high performance FBE primer or Fusion Bonded Epoxy primer. Usually the corrosion protective layer. This layer is of combination bonded epoxy which offers exceptionally good corrosion protection. The fusion reinforced epoxy contains a very great holding with the blasted steel surface.