Products

3LPE Coatings

What is 3LPE Coating?

3 LPE coating refers to the multi-layer coating, it has 3 layers in total. A high performance Fusion Bonded Epoxy (FBE) primer, followed by a copolymer adhesive and an outer layer of polyethylene which provides tough, durable protection. Under the moderately high temperature the 3 LPE coating can offer the protection for the small and large diameters pipelines.


The 3 LPE coating can offer the long term corrosion protection. The FBE layer can provide the excellent metal anti-corrsion, it can maintain for a long time and protect the pipeline at the moderate temperature. The Low Application Temperature(LAT) FBE can be used as the primer layer to low preheating conditions and long term integrity of high strength steels. In addition, 3LPE systems offer excellent resistance to cathodic disbondment, reducing lifecycle costs of cathodic protection.

The 3 LPE coating can provide the very good mechanical protection. During the transportation and installation, the outer layer, the PE layer can reduce the abrasion can provide the in-ground protection against the shear forces, chemicals and abrasive soil conditions.By increasing the thickness of the PE outer layer, the 3LPE system can provide a high level of mechanical protection across a variety of difficult environments without requiring the use of costly backfill.


Corrosion Resistance :

  • 3LPE/PP Coating prevents steel pipe from corrosion.
  • Excellent chemical resistance properties and resistance to cathodic disbandment.
  • 3LPE/PP Coating has got good resistance to moisture permeability.

Mechanical Protection:

  • Top coat of polyethylene/polypropylene prevents abrasion and damage to fusion bonded epoxy during handling.
  • High Bond Strength
  • The external coating and epoxy is bonded firmly to the steel pipe surface and this is mean to adhesion strength (ASTM D 4541)

Applications

3LPE/PP coated steel pipes are mainly used in the following applications where the pipes are either buried or submerged:

  • Drinking water pipe lines, Oil and gas pipelines
  • In plant process water applications

Standards and Specifications

3LPE/PP pipes are coated according to the following standards:

  • DIN 30670
  • CSA Z245.21
  • ISO 21809-1
  • Or any other International standard/client specs