S&F Double ‒ wall Tank is a truly innovative product; it has a double ‒ wall structure consisting of a primary steel tank and a secondary FRP tank, and it is equipped with sensor for monitoring leakage. The seamless secondary FRP tank is manufactured using our advanced spray-up technology. ※FRP: Fiber-reinforced plastic
Leakage due to corrosion of the steel layer is detected before it causes soil contamination.