What Makes Fiberglass Great

Fiberglass is one of the most popular materials for flow rate measurement devices, thanks to the wide variety of benefits it offers compared to alternative materials. In the decades since it was first introduced in the 1960s, fiberglass has exploded in popularity across wastewater flow rate measurement applications. Discover what makes fiberglass so great and see how it compares to other materials.


One of the most popular features of fiberglass is just how lightweight it is. Being lightweight compared to other materials means that it’s easier to handle, transport and install. With that ease comes decreased costs when it comes to manufacturing and labor, as less material is required for construction and fewer people are required for installation. Specifically, fiberglass is nearly half the weight of stainless steel and slightly lighter than aluminum. Assuming your flume uses a quarter-inch wall thickness as most do, fiberglass will weigh just 2 to 2.5 pounds per square foot.

Exact Dimensions

Fiberglass devices are created using master molds, so you can always count on dimensional accuracy. This even works for tight dimensional tolerances, which is particularly useful for odd flows and channel configurations. The shape versatility allows for a greater variety of shapes that may not even be structurally sound if crafted from other kinds of materials. It comes out in a seamless, single-piece structure at the end even if the flume is made from two or more pieces that are eventually molded together.


Fiberglass’s lightweight properties may make some people worried that it’s not as strong as other more traditional materials, but that’s not exactly how fiberglass works. In fact, fiberglass can match the strength of a wide variety of steels at only a quarter of the overall weight. That strength doesn’t manifest in general heartiness alone but in durability as well. Fiberglass is resistant to corrosive flows, thanks to its protective gel coat, so no chlorine and other corrosive chemicals should give you much trouble.

Easy Maintenance

Fiberglass flumes are largely self-cleaning, so you won’t have to worry about a great deal of necessary maintenance throughout their lifespan. The gel coat reduces corrosion, but you will still have to do some regular cleaning. Fortunately, all that cleaning requires is a bit of a wash down with some mild detergent. If you need the surface to retain its gloss finish, you may need to apply some wax as well. You’ll never have to worry about coating, painting or descaling it, and even UV damage is minimized, thanks to UV inhibitors in the gel coat.

Fiberglass Flumes From Tracom

Now that you know what makes fiberglass so great, it’s time to get a fiberglass flume for your application. That’s where Tracom is happy to help. Whether you need a new install or a replacement, our team will work with you to create a custom design specially suited for your unique open channel flow conditions. Of course, we have a catalog of designs and sizes available for your convenience as well. Contact us today to get started.