Tank Rehabilitation – Repairing Fiberglass Tanks and Liners 

Fiberglass tanks (also commonly known as FRP tanks) and tank liners are designed to last for a very long time. By having them regularly maintained and repaired, you can help ensure optimum performance and extend the life of your FRP tanks and liners.

Examples of Fiberglass Repairs Your Tanks Might Need

Over time, your company’s FRP tanks may sustain a variety of damage. The following are some of the most common issues that require repairs:

• UV Light Damage: After an extended period, even the most durable of tanks are vulnerable to the ultraviolet rays of the sun. This powerful, natural light can erode the surface via the resins that keep the glass together. As the gel coating or paint thins, the glass particles in the resin will emerge.
• Spiderweb Cracks: Another potential issue is the appearance of spiderweb cracks in the external wall. The formation of these cracks is typically the result of specific impact, such as when a tank is bumped by a forklift or other heavy machinery.
• Corner Cracks: On transport tanks, cracks may manifest in the corners. This usually occurs after the bumpers between the tanks and the skids become too worn or they move out of place. The fiberglass can then come in contact with the metal, leading to cracks or weak spots.
• Internal Leaks/Seepage: Not all FRP tank damage is external. If a unit has an internal leak, seepage might extend from inside the tank. Wet areas on the exterior can be caused by liquid from the interior making its way through the resin.

The Importance of FRP Tank Rehabilitation

When issues are detected early enough, they can often be repaired. If there is UV damage, a gel coat or paint may be applied to restore the adherence of fibers. A technician might sand the entire surface before recoating the entire unit. Spiderweb cracks may only need to be repaired from the outside of a tank. However, if seepage has occurred, internal repair may also be needed. When a tank sustains corner cracks, it is generally best to address the damage from both sides of a tank. Sometimes, the industrial lining inside a tank must be repaired or relined.

How to Know when Your Fiberglass Tanks and Liners Need Repair

Fortunately, fiberglass tanks and tank liners can be fixed in many cases. The key to avoiding premature replacement of a unit is to schedule regular inspections and maintenance. To prevent further problems, inspections, maintenance, and repairs should be performed by qualified, NACE-certified technicians.

Questions about FRP tank rehabilitation, tank liners, or other related issues? Feel free to call us at (510) 232-0065, or  use our online contact form today.