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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. First - A high performance FBE primer or Fusion Bonded Epoxy primer. Second is a copolymer adhesive and the final constituent is an outer layer of polyethylene. This final outermost layer of the finish is what provides the 3LPE Coated EFW Pipe with a tougher and more durable form of protection.
The use of 3LPE on piping systems contributes to excellent protection for not only smaller diameter systems but also large diameter pipelines. The use of a 3LPE Coated Seamless Pipe is well functional in applications with moderately high temperatures. A benefit of using this coating on pipes is that the systems have a longer, and a more efficient service life. The main reason for this is the adhesive behaviour of the FBE component. Along with provides excellent adhesion to a 3LPE Coated Carbon Steel Pipe, the component also provides excellent long-term corrosion resistance and stability, even if the pipelines are operational at moderate temperatures. The tough outer polyethylene layer present on the 3LPE Coated Seamless Tube is what preserves them during transportation and installation. Thus, the application of this coating reduces costly repairs while affording added in-ground protection against several external stressors such as chemicals, shear forces, and abrasive soil conditions. An increase in the thickness of the outer polyethylene layer, the 3LPE can provide a high level of mechanical protection to the 3LPE Coated Welded Pipe across diverse perverse circumstances without necessitating the use of expensive backfill.
Layer 1: 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.
Layer 2: This layer is the copolymer adhesive. The copolymer adhesive could be a maleic anhydride united polyethylene compound. This material has great chemical holding to the fusion reinforced epoxy and the beat layer polyethylene.
Layer 3: This layer is for physical protection and comprises polyethylene. Since the copolymer adhesive and polyethylene are comparable, they bond well with each other
Corrosion Resistance :
Mechanical Protection :
High Bond Strength :
Long Working Life :
Customized Solutions :