Profile: Spanker Fiber Plastics specializes in PVC strips. Our transflex PVC strip doors reduces heat or cold air loss, restricts movement of duct, dirt, smoke, fumes & draughts and isolates noisy machinery. Our polar PVC material is designed for both interior and exterior applications, which improves shelf life without inhibiting product appeal and reduces coil icing. Our welding enclosures are the perfect solution for controlling ultraviolet rays, noise, dust or sparks in welding and machine shops.