Is the design of lng film tank allowed to leak?

What the subject wants to ask is whether the lng film tank design will leak, right? No. According to the query results of technical website, the main film layer of lng film tank is made of corrugated stainless steel film, and the auxiliary film layer is made of composite material, which can store LNG at minus 163 degrees Celsius, prevent its leakage, and limit the evaporation loss of LNG. LNG film storage tank is a new type of storage tank developed by GTT company in France. The inner tank is a closed low-temperature insulation system consisting of two-layer membrane structure and two-layer insulation layer.