Cement Lining: Applications, Benefits, and Installation Methods
By Daniel Levin
What Is Cement Lining?
Cement lining isn’t always top-of-mind in the PVF world, but it plays a major role in protecting steel piping systems—especially in water service. Here’s a quick overview of what it is, how it works, and why it’s still widely used today.
Cement lining is a thin layer of cement mortar, typically ¼"–½" thick, applied to the inside diameter of a steel pipe. Its primary purpose is to protect the ID from internal corrosion. You’ll see cement lining used in systems carrying seawater, river or lake water, potable water, wastewater, and storm water.
While it may sound like a modern technology, cement lining actually dates back to the ancient Romans, who used similar methods to extend the life of their water infrastructure. The cement lined pipe spools shown here were fabricated by OK Pipe & Fittings and lined by Cement Lining Company for a municipal water supply project.
Advantages of Cement Lining
Long-Lasting Corrosion Protection
Cement lining has proven itself over generations. Not only does it create a durable physical barrier between the water and the steel, but it often outlasts the pipe itself. After centuries of real-world use, it remains one of the most reliable methods of internal corrosion protection.