Is polyethylene pipe affected by chemicals?
Plastics are not subject to galvanic corrosion, as are metals, since they are not conductors. However, plastics can be affected through direct chemical attacks, strain corrosion, or solvation. The extent of the resistance is a function of many items, including time, temperature, and stress of contact. For more information you can consult PPI Technical Report TR19[38], Thermoplastic Piping for the Transport of Chemicals.