The Chem Proline single-wall UV-resistant industrial piping system is a crack-resistant polyethylene piping system designed for the harshest liquid chemical applications. Made from the latest generation of PE resin, the pipe and fittings are resistant to slow crack growth. This system is a lower cost alternative to metal, fiberglass-reinforced plastic pipe, and lined steel pipe. Thermally fused using socket, butt, or electrofusion joining methods, it uses no glues and features minimal threaded connections. Asahi/America Inc.