Supply of high impermeability mounds of coal tar epoxy anti-corrosion steel prices, 3PP anti-corrosion steel pipe wall corrosion manufacturers divided into two: one is a hot melt epoxy powder preservative (high temperature sintering), one is a liquid epoxy coating, Commonly used liquid epoxy IPN8710 (normal cold spray). Both wall corrosion performance of different forms of anti-corrosion technology and in particular in: Yanshan supply high impermeability coal tar epoxy anti-corrosion steel prices, 3PP anticorrosive steel pipe manufacturers domestic implementation of standards, with effect from August 1, 2002 implementation. Standard specification mainly polyethylene and high density polyethylene-based, as Vicat softening point of not less than 110 ℃; thickness of the outer coating of the press to a low, medium density polyethylene-based German standards DIN30670-1991 to determine. Greatly improves the impact strength of 3PE coating. 3PE coating will peel strength, impact indicators significantly improved and clearly defines the content of carbon black, according to some special materials, ensure that the mechanical strength and weather resistance 3PE coating, and to increase the mending peel strength (that is hot shrunk, peel strength of the primer steel thermal tape) frequency sampling tests.