Polyethylene protective 3 layer structure is also called the 3 PE/pp.it was a advanced external anti-corrosion technology introduced from Canada to China's in 1995 .3 PE coating, epoxy coating interface properties and chemical properties, and the advantages of extruded polyethylene anti-corrosive coating mechanical protection feature, so as to significantly improve their performance.
According to the experiment, 3 PE can extend the life of buried pipelines for 50 years .The anti-corrosive coatings are widely used in the oil and gas transmission pipeline.Now the domestic existed hundreds of 3 PE coating production line, has the processing Φ 25-2800 - mm steel pipe of 3 PE coating capability.The coating is in accordance with DIN 30670, 30678, TS 5139,UNI 9099 and EN 10288 standards.
First Layer : Electro statically applied fusion bonded epoxy primer(FBE>100um)
Second Layer : Extruded adhesive wrapping(AD170~250um)
Third Layer : Extruded polyethylene wrapping Coating(PE2.5~3.7mm)