3PP Coating

The 3PP means three layers of PP coating.

PP three-tier structure of anti-corrosion pipeline: 

the first layer of epoxy powder (FBE50 - 100um), 

the second adhesive (AD) 250 - 400um, 

the third layer of polypropylene (PP) 1.4 - 4.0mm. 

Coating temperature up to 110 degrees.

Diameter 

Φ159 - Φ1220

Standards

DIN30678

Application
Widely used in high surface temperature, according to the region longer underground water, gas, oil pipelines.

Production process
Pipe inspection → Derusting Test Pipe driving→ Secondary dedusting → Preheating→ Epoxy powder coating→ Gluing→ Painting PP→ Cooling stereotypes→ Ends processing final test Stacking.