Double Wall Composite Tank


The Plasteel® Double Wall Composite

The inner primary steel tank is assembled, welded and tested for tightness. The primary steel tank provides the underground structural performance for the Plasteel® Double Wall Composite Tank. The outer steel secondary containment tank is assembled and welded 360° around the inner primary tank creating an interstitial space. The interstitial space between the primary tank and the secondary containment tank is designed to provide access to detect a liquid in the interstitial space and containment of the liquid.

for gas station
Plasteel® Composite Underground Tank

Potential Industries & Markets


IT / Data Centers



Previous Projects

UL1746 / UL58​

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