Martin Marietta Composites is expanding the use of fiber-reinforced polymer (FRP) composites into rail transportation. Composites have long been recognized as having high strength, durability, low weight and corrosion resistance. The advantages of composites bring innovation and efficiency to railcar design. Advantages include:

• Higher insulation value (R-Value)
• Composite materials do not retain moisture, warp or rot like wood
• Faster production since components are delivered ready to install

Martin Marietta Composites offers products designed for refrigerated railcars, including various prefabricated components and liner materials. New product innovations are always in development.