3PE, we also called 3LPE.It is used in transferring natural gas, crude oil and refined oil product over long distances. It also can be used in the urban fuel gas piping system, storage tanks, and groove piping system. 3PE’s main purpose is protecting pipes which used in electricity and communication industries and water piping systems.
Just as its name implies, 3PE coating including 3 Layers.
Fusion bonded epoxy, which thickness is larger than 100μm. ( Thickness of FBE coated ＞100μm ）
Adhesive layer. It is binding epoxy and PE layers. ( Thickness of second layer: 170~250μm)
PE layers. Thickness is from 2.5 mm to 3.7 mm. It is polyethylene which has advantages to anti-water, electrical resistance, and anti mechanical damage. It is a very important layer.