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With TMK GIPI’s commitment to delivering highest quality products, corrosion protection is a critical element contributing to the lifespan of steel pipelines. When Carbon steel pipelines are invariably exposed to some type of corrosive environment, a corrosion protection is required which could be as simple as external paint or sophisticated internal and external coatings supplemented by a catholic protection system.

TMK GIPI is an industry leader in the technology application of protective coatings and linings to steel pipes offering the following systems.

External protection (6” ~ 48’)
Fusion Bonded Epoxy Coatings (FBE)
3 - Layer Coatings for Polyethylene or Polypropylene (PE/PP).
Liquid Epoxy Coatings and Linings 

Internal protection (8” ~ 48”)
Liquid Epoxy Linings

Fusion Bonded Epoxy Coating
Surface preparation of pipes includes removal of all surface moisture by passing pipes through a heating ring and flame, impinging all surface contaminants.

Prepared pipe passes through a process of wire brushing and vacuuming before the application of chromate pre-treatment. This is followed by induction heating which reaches a temperature between 180°C – 240°C prior to processing through an electrostatic spray booth. Full curing takes place within seconds with inspection commencing once surface temperature has reduced to a hand touch level.

3-Layer Coatings
A first layer of Fusion Bonded Epoxy (FBE) is applied. Thereafter a high performance protective adhesive layer is applied to the FBE coating which bonds to the final coat of either Polyethylene or Polypropylene.

Liquid Epoxy Lining
A thorough process of surface preparation is conducted. Liquid epoxies, solvent borne and solvent free are applied to the pipe inner surface through a lance and spray nozzle. For solvent free epoxies the two components are heated to 60 °C using heated water jackets along the lance to the mixing nozzle.

For solvent borne products premixed epoxy is pumped through a spray nozzle using airless spray equipment.

Manufacturing process

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