Steeliner transportation interior wall & roof liner is a high strength fiberglass composite panel. It is tough, durable and USDA approved. Panels provide great impact and abrasion resistance, and are extremely resistant to moisture. Wall liner panels also protect against a wide range of chemicals and are rustproof and mildew resistant. In our range of products we offer the Standard Smooth or Embossed finish and the special reinforcement with Woven Roving Tissue.