3-LAYER POLYPROPYLENE (3LPE) COATED LINE PIPE

Commodity name： 3-LAYER POLYPROPYLENE (3LPE) COATED LINE PIPE

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3-Layer Polypropylene (3LPE) Coated Line Pipe

BRISK STEEL can produce 3LPP 3-Layer Polypropylene Coating for API 5L PSL 1 & PSL 2 Line Pipes from NPS 2" to NPS 56" (60.3mm - 1422.4mm), welcome to contact us if you have such RFQs.

Three Layer Poly Propylene (3LPP) coating 3LPP coating system is a multilayer coating composed of three functional components: a high-performance fusion-bonded epoxy (FBE), followed by a copolymer adhesive and an outer layer of Medium Density Polypropylene (MDPP) or High-Density Polypropylene (HDPP), which provides protection against external corrosion.
The codes and standards for 3LPP Coating are DIN 30678, ISO 21809-1, NFA 49-711, SHELL DEP 31.40.30.31-CSPC

DIN 30678-2013 Polypropylene coatings on steel pipes and Fittings
ISO 21809-1:2011 Petroleum and natural gas industries -- External coatings for buried or submerged pipelines used in pipeline transportation systems -- Part 1: Polyolefin coatings (3-layer PE and 3-layer PP)
NFA 49-711 External Coating with Three Polyproplene Layers Coating, Application by Extrusion
SHELL DEP 31.40.30.31-CSPC External Polyethylene and Polypropylene Coating for Line Pipe

Fusion Bonded Epoxy (FBE): First layer of FBE shall be 150 microns thick.
Adhesive: Second layer of extruded co-polymer adhesive, 200 microns thick.
Polypropylene (MDPP/HDPP): Third layer of extruded polypropylene (MDPP/HDPP), 1.6 – 2.95 mm thick.

Application of Coating:
Surface preparation of pipe by sandblast cleaning (SSPC-SP10/NACE No.2/ISO 8501-1 Sa 2 1/2/SIS 05 59 00)
Subsequent to pipe heating fusion epoxy powder shall be applied
Extruded adhesive shall be applied over the pipe.
Finally extruded polypropylene (MDPP or HDPP) layer shall be applied over the adhesive layer.
Total coating thickness is generally < 3.0 mm for pipe dia < 24" and 3.3 mm for pipe dia 32" & above)
Image result for Three Layer Poly Ethylene/ Propylene (3LPE/ 3LPP) coating 3LPE/ 3LPP coating system is a multilayer coating composed of three functional components: a high performance fusion bonded epoxy (FBE), followed by a copolymer adhesive and an outer layer of Medium Density Polyethylene (MDPE) or High Density Polyethylene (HDPE), which provides protection against external corrosion. The codes and standards for 3LPE are ISO 21809-1, DIN 30670 or CAN/CSA Z245.21. Fusion Bonded Epoxy (FBE): First layer of FBE shall be 150 microns thick. Adhesive: Second layer of extruded co-polymer adhesive, 200 microns thick. Polyethylene (MDPE/HDPE): Third layer of extruded polyethylene (MDPE/HDPE) or polypropylene (MDPP/HDPP), 1.6 – 2.95 mm thick. Application of Coating: Surface preparation of pipe by blast cleaning, subsequent to pipe heating fusion epoxy powder shall be applied and after that extruded adhesive shall be applied over the pipe. Finally extruded polyethylene (MDPE or HDPE) layer shall be applied over the adhesive layer. Total coating thickness is generally < 3.0 mm for pipe dia < 24" and 3.3 mm for pipe dia 32” & above)

Core Advantage

Brisk Steel Group is rooted in a culture of "technology as the backbone, quality as the soul, and customers as the heart." Through relentless innovation, global expansion, and a commitment to responsibility, we strive to become a trusted global partner and a technological benchmark in the steel manufacturing industry.

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We adhere to a rigorous quality control system that spans the entire production process—from raw material procurement and manufacturing to product delivery—ensuring the highest standards of excellence.

Innovation-Driven Technological Leadership

We prioritize R&D and technological advancement, integrating cutting-edge production lines (e.g., JCOE large-diameter LSAW pipe production) and expert teams from countries like Germany and the Netherlands to maintain our position at the forefront of the industry.

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Actively engaging in the global supply chain, we have obtained international certifications such as CE marking, enabling our products and services to reach worldwide markets.

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We value the recruitment and development of technical talent, building an international and professional team that drives continuous growth.

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