由于供水商必须前往越来越偏远的地区供水，泵送的经济性和管道流动中的摩擦损失以及管道的寿命变得越来越重要。石油和天然气行业的标准做法是水行业的一项新技术:钢和球墨铸铁管的熔结环氧衬里和涂层。熔结环氧涂层利用热量熔化环氧涂层并将其粘附到金属基材上。与聚乙烯和其他软衬相比，熔结环氧树脂的耐磨性要优越得多。在减少摩擦的同时，镜面抛光也减少了管道内部异物的堆积。要使用环氧树脂衬里，首先要对表面进行清洁、脱气，然后加热。喷涂环氧粉末，然后固化管道。管道的内部和外部都遵循类似的过程。 环氧涂层也可用于现场焊接钢接头。在存在长管道腐蚀或摩擦损失问题的地区，熔结环氧树脂的额外初始成本是合理的。

As water suppliers must go to ever more remote regions for water supply, the economics of pumping and friction loss in pipe flow, as well as the life of pipes, becomes ever more important. What has been standard practice in the oil and gas industry is a new technology for the water industry: the fusion bonded epoxy lining and coating of steel and ductile iron pipe. A fusion bonded epoxy coating uses heat to melt and adhere the epoxy coating to the metal substrate. When compared to polyethylene and other soft linings, the abrasion resistance of fusion bonded epoxy is far superior. While reducing friction, the mirror-like finish also reduces the buildup of foreign material on the interior of the pipe. To apply the epoxy lining, the surface is first cleaned, degassed, and then heated. The epoxy powder is sprayed on, and the pipe is cured. A similar process is followed for both the interior and exterior of the pipe. Epoxy coatings can also be applied to welded steel joints in the field. The extra initial cost of fusion bonded epoxy can be justified in areas in which corrosion or friction loss over a long pipeline are problems.