Elastic felt is mainly made of glass as raw material, and is made of artificial inorganic fiber by high temperature melting glass wire blowing. Its main composition and processing technology is similar to that of glass wool, but through different processing processes, it has higher resilience.

　　As an important structural component of cryothermal insulation system of LNG storage tank, elastic felt insulation layer is located between the inner tank wall and expanded perlite, which is used to absorb the impact of expanded perlite on the inner tank under various conditions. Used to maintain the integrity of the storage tank and prevent damage to the inner tank wall. In some designs, elastic felt alone is used as insulation for the inner wall of the tank.

　　Standard applicable temperature for elastic felt. At present, there are few related products and design standards of elastic felt. It is only applicable to the insulation and corrosion protection system of vertical cylindrical flat bottom frozen liquefied gas storage tank. Its application scope is mainly 0°C below the temperature range, and applicable to commercial and industrial fields for low temperature requirements.

　　Uetersen LNG elastic mat has excellent elasticity, not easy to deformation and collapse, and excellent thermal insulation performance. At the same time, it also has anti-corrosion properties to avoid the corrosion of chemical materials in the process of use, which affects the performance of cold preservation. In addition to the application of liquefied storage tank, the anti-corrosion function of LNG elastic mat can also meet the application of offshore storage tank. The anti-corrosion function can effectively resist the erosion of sea wind and sea steam. At the same time, the multi-layer glass fiber arrangement into layers can reduce the tensile damage during installation, and maintain the thickness of the product and springback stability. At the same time, the production requirements of thermal insulation elastic felt for LNG storage tanks were strictly implemented, and the details were refined to the diameter of glass wool fiber.