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Fuel, Water and Oil & Gas Fiberglass Tanks

Over 200,000 underground fiberglass storage tanks installed

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When Shawcor Ltd. acquired ZCL Composites, it gained two strong tank brands that were originally individual companies: Xerxes Corporation and ZCL Composites. To recognize the original legacy brands – since ZCL began business as Xerxes’ Canadian licensee – the tanks previously known as ZCL | Xerxes are now Xerxes by Shawcor tanks.

Fiberglass Storage Solutions

Trust corrosion-resistant technology that is engineered to endure.


Tank Inventory

Fast-track your project lead times. Browse currently available inventory from our North American manufacturing locations.

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Be part of a sustainable legacy with North America’s leading fiberglass tank manufacturer

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Design your success with careers that break the mould.

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Global Leaders in Corrosion-Resistance

We are a leading fiberglass tank manufacturer. Our 40-year track record of 200,000 tank installations stands as proof of the reliability and excellence of our products. Our FRP tanks are structurally strong and made of 100% premium resin and glass. Our tanks are corrosion-resistant, both inside and out.

Our underground corrosion-resistant tanks help preserve and protect the environment, making them the safe, long-term sustainable choice.

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