LNG Fuel Tank Insulation for cruise and passenger vessels

Spray foam insulation for Type C LNG fuel tanks

LNT Marine provides various solutions for LNG fueled vessels based on its vast experience with LNG containment and insulation systems.

LNT Marine can offer a range of spray foam insulation systems for cylindrical as well as bi-lobe type C LNG fuel tanks. Our type C systems are fully bonded PU spray foam insulation systems tailormade and optimized for the client’s needs.

We can offer:

  • Spray foam with polymeric coating
  • Spray foam with stainless steel or GRP cladding
  • Spray foam with integrated fire insulation and cladding

Our spray foam systems for type C tanks offer market leading thermal performance, reducing maintenance needs and improving the insulation system life-time.

Spray foam system for type C
LNG Fuel thermal analysis type C tank


For the larger tank sizes needed for ocean going vessels volume efficiency and BOR is increasingly important. LNT Marine has developed a semi-pressurized prismatic fuel tank solution referred to as the LNT Fuel-BOX™ which addresses these needs. The LNT Fuel-BOX™ is based on the core principles from the LNT A-BOX® containment, but modified and optimized for LNG fuel tank applications.

The semi-pressurized tank and low BOR offer operational flexibility and longer holding time compared to atmospheric tank designs. The tank is designed with a Limit State Design approach as per IMO IGC and has received an Approval in Principle (AiP) from ABS class.

CMA Pegasus LNG Tank