the pickle jar test

Who stole the pickle from the pickle jar?

This simple, old-fashioned children’s chant has been popping into my head off and on for a couple of years now, and I know exactly why. It started when Flowtite® FRP pipe passed the pickle-jar test.

For those of you who may not have heard of it, the pickle-jar test is the name for a series of tests applied by the city and county of Los Angeles to materials used in its sewers. These tests, specified in the Greenbook: Standard Specifications for Public Works Construction, are designed to verify a pipe’s long-term resistance to corrosive agents. Flowtite® FRP pipe passed the pickle-jar test in 2014.

So how can Flowtite® FRP withstand long-term attack by aggressive chemicals? Part of the secret is in the glass. Unlike the competition, Flowtite® is made using E-CR glass, an E-glass made with calcium aluminosilicate, a compound which displays extremely high acid corrosion–resistance properties. Using E-CR glass reduces the risk of a catastrophic failure in laminates and decreases emissions. This has the effect of reducing the environmental impact of manufacturing fiberglass.

E-CR glass is just one feature that makes Flowtite® FRP such a great choice for sewer applications. Strength and superior anti-corrosion are simply built-in, and you can see some of the proof in my pickle-jar example.

Speaking of strength, Flowtite® FRP is a stellar performer when it comes to pressure applications, too. But that’s a story for another newsletter.

As my grandmother might’ve said: One pickle at a time.



P.S. A few weeks ago I found myself at a conference in Prague discussing Flowtite® FRP and its many remarkable qualities with engineers from all over the world. Hardly surprising that it’s been so successful on five continents, or that enough FRP pipe has been installed to stretch one-and-a-half times around the world! While you’re contemplating that statistic, why not follow us on LinkedIn?