RailPac^® ensures the safest transportation of contaminated waste materials with a form-fit design to keep our liners securely in place. Manufactured from your choice of extruded or woven polymeric fabrics, these liners and tarps are designed for your railcar’s exact specifications and custom sizes are always available. The patented zipper ensures quick and easy installation and closure and can be fitted with a tamper indication device to deter unauthorized access.