PERMATANK® Double-Wall Jacketed Underground Storage Tank

Engineered with a steel inner tank and a fiberglass-reinforced exterior, PERMATANK® provides reliable secondary containment and accurate leak detection for safe, compliant underground fuel storage.

tanks

PERMATANK® Double-Wall Jacketed Underground Storage Tanks

PERMATANK® double-wall jacketed underground storage tank, built with an inner steel tank for structural strength and a corrosion-resistant fiberglass-reinforced plastic (FRP) exterior. A unique standoff material creates a uniform interstitial space between the walls, allowing for rapid and accurate leak detection. The PERMATANK® design meets UL 58, UL 1746, and ULC-S603.1 standards, providing safe, compliant, and long-term underground fuel storage.

Permatank® Underground Tank

PERMATANK® Double-Wall Jacketed Tanks Features

The PERMATANK® system is engineered to provide safe, compliant, and durable underground tank solutions. Each unit is built to industry-recognized standards and offers the performance needed for storing petroleum, ethanol, biodiesel, and other compatible fuels.

Meets UL 58, UL 1746 and ULC‐S603.1
30 Years warranty
Capacities range up to 60,000 gallons
Impermeable to all petroleum products and vapors
All tanks proven tight throughout installation, via third party certification, by interstitial vacuum test ‐ 13 inches Hg minimum
Corrosion resistent exterior fiberglass tank and steel primary tank
Wide range of capacities and compartments
Compatible with all ethanol and bio-diesel fuels along with many other chemicals that can be safely stored with the application of internal linings approved by STI engineers
Designed shorter than an all‐FRP tank of the same capacity, reducing the cost of installation and increasing site layout flexibility

PERMATANK® Benefits

PERMATANK® underground tanks are designed not only for compliance but also for long-term value. From cost savings during installation to environmental responsibility and quality assurance, these tanks deliver advantages that go beyond storage capacity.