The 3-layered Polyethylene (3LPE) is a multilayer thermoplastic coating that is designed to provide maximum long term corrosion resistance and mechanical protection to steel pipes. This Technology has the advantages of excellent adhesion; the provision of superior long term corrosion, cathodic disbandment and impact resistance where these properties are essential for maintaining pipeline integrity and durability.
3LPE coating the composition of the 3 layers is:
• Base layer (Epoxy): The base layer is an Epoxy layer that protects the steel, improves the adhesive surface and the resistance to cathodic dispondment.
• Adhesive layer: This layer role is to improve the adhesion of the polyethylene layer to the epoxy layer and to strengthen its resistance to peeling.
• Polyethylene layer: Protects the pipe from any mechanical damage or corrosion, it also works as an electric insulator to the steel pipe.