water tank lining
A resistant layer of paint coats the outside of many tanks. This protects the material from the environment and keeps the tanks looking tidy. Many a company spend a lot of time and money trying to find one that can adequately protect their tanks and storage containers from the elements.

This doesn’t mean that less time is spent considering what sort of materials coat the inside of a tank. With the liquid stored in tanks coming into direct contact with the inner tank lining, paying closer attention to what goes on with the inner materials is a smart move for company engineers.

Inner tank linings must maintain the purity of the tank contents as well as extend any protection if possible. Here, we round up the most common tank linings used today to help you choose which one could benefit you most. Tank construction standards such as the API 650 can also suggest which linings will work best.

Cementitious Linings

As the name suggests, these are cement-based linings. Often covering the surfaces of underground tanks, they are effective for waterproofing. These linings are great for water tanks.

Polyurea Linings

This type of lining is a recent development, attaining widespread use only in the early 90s. These linings can be applied quickly, with a gel time of under 10 seconds. This highly stable lining is ideal for storing chemicals and water. In addition, it is a great way to coat tanks made of metal.

Vinyl Ester Coats

For those planning to store highly reactive chemicals, this type of coating is a great option. Not only does it have a stellar record within the industry, but it is also a very stable and resistive material. It can, therefore, withstand chemical attacks even at elevated temperatures, making it an ideal material to apply on metal tank interiors.

Epoxy Linings

This type of lining is popular for their ability to prevent corrosion from occurring. While it works well for both water and harsher chemicals, however, this technology has its limitations. For example, in an area with a strong water vapor pressure, blistering can occur.

Polyurethane Coats

These come in many forms and not all are as compatible as lining. Polyurethane, however, is surprisingly good when used on tanks made of steel or concrete. Just like epoxy linings, this impermeable material can develop issues with constant water vapor exposure.

A good inner tank lining can make or break a facility. For one, it can provide excellent storing conditions for chemicals. Second, the right lining will significantly improve the performance and lifetime of tanks. Seeking advice and researching available options are great ways to make sure your tanks will serve you a long time.