3PE anti-corrosion steel pipe is the three-layer structure of polyolefin coating (MAPEC) external corrosion steel pipe, is commonly used as a preservative pipeline, there are other IPN8710, FBE epoxy powder, such as coal tar epoxy anticorrosive way.
The main specification standard polyethylene and high density polyethylene products mainly as Vicat softening point of not less than 110 ℃; thickness of the outer coating according to low, medium density polyethylene-based German standard DIN30670-1991 to determine, greatly improves the impact strength of 3PE coating.
The first layer of epoxy powder (FBE> 100um)
The second adhesive layer (AD) 170 ~ 250um
The third layer of polyethylene (PE) 2.5 ~ 3.7mm