What is PE-X?
PE-X is the standard term used for cross-linked Polyethylene. PE-X is based on the PE polyethylene polymer, but the structure is reinforced by the introduction of links tying the molecular chains together, termed ‘cross-linking’. Today there are three principle types of PE-X, PE-Xa peroxide, PE-Xb silane, and PE-Xc radiation cross-linked (see ‘What cross linking techniques are available?’). Cross-linking gives the material higher temperature resistance and superior toughness over a wider temperature range compared with PE.
