Steel Pipe Coating with Three Layers of Anti-Corrosion Protection (3LPE) is a high-performance coating solution designed to ensure long-term durability and reliability of steel pipelines in harsh environments. This advanced system combines the strength of fusion bonded epoxy, the adhesive properties of copolymer, and the mechanical protection of polyethylene to create a robust, multi-layer defense against corrosion, impact, and environmental stress.

The 3LPE coating system consists of three integrated layers that work together to provide superior protection:

• First Layer - Epoxy Primer: Offers excellent adhesion to the steel surface and provides primary corrosion resistance.
• Second Layer - Adhesive Layer: Ensures a strong bond between the epoxy and the outer polyethylene layer, enhancing overall coating integrity.
• Third Layer - Polyethylene (PE): Delivers outstanding mechanical protection, including resistance to abrasion, impact, and moisture penetration.

• Superior corrosion resistance
• Strong adhesion and coating stability
• High impact and abrasion resistance
• Long service life with minimal maintenance
• Suitable for extreme environmental conditions

This coating technology is widely used in oil, gas, water, and chemical pipeline projects, especially for underground and offshore applications. It significantly extends pipeline service life, reduces maintenance costs, and ensures safe and efficient transportation of fluids.

• Oil & gas transmission pipelines
• Water supply and drainage systems
• Offshore and subsea pipelines
• Industrial and chemical pipeline networks

Upload pipes → Pipes conveyor → Rust Cleaness → Intermediate frequency heating → Epoxy Spray → Adhesive Coating & Polyethylene Wrap → Water Cooling → Edge Beveling → Unload pipes

Main Equipment of 3LPE anti-corrosion coating processing:

Qingdao Huashida Machinery Co., LTD is a manufacturer of series of plastic pipe machines, municipal pipe machines, pipe insulation & anticorrosion machines, and pipe jointing & anticorrosion materials, with more than 20 years of production experience.

• HDPE jacket pipe for pre-insulated pipe Production Line (110-2000mm)
• Rigid pre-insulated pipe Production Line
• Flexible pre-insulated pipe (PERT) production line
• Steel pipe FBE/2LPE/3LPE anti-corrosion coating line
• Steel pipe dust control system (Shot and Sand blasting)
• PE pressure pipe/Water Gas supply pipe production line
• PP/PE plastic board/sheet/geomembrane production line
• NBR PVC Thermal insulation tube/plate production line
• Pipeline anti-corrosion materials and instruments: heat shrink joint coating sleeve, electro-fusion weldable joint sleeve, portable welding gun (extruder), PE PP welding rod

We are always attach great importance to research and development, collaborating closely with Tsinghua University, Beijing University of chemical technology, South China university of technology and scientific research institutions. By absorbing advanced technology home and abroad, we now rank one of the top 3 manufacturers in the industry in China.

We have been working with more than 400 overseas customers and exporting our products to Kazakhstan, Uzbekistan, Middle East, Russia, Nigeria and other countries.