Koppers is a leading supplier of treated wood products, rail joints and track components. Our crosstie, switch tie, crossing panel, track panel and bridge timber products are dual treated with borate and creosote. Our proprietary pressure treating process ensures verifiable and repeatable preservative retention levels. Koppers’ field-proven rail joints incorporate innovative technology to provide solutions for your specific applications. We offer Advanced Bonded Insulated Joints (SAP®), Bonded Insulated CENTER LINER®, Kevlar, Field Kits and Factory Bonded Plugs, along with Standard and Bolted Insulated Rail Joints. Koppers also manufactures innovative Track Components including Anti Rail Rollover devices, Gage Plate Insulators, Switch Plate Insulators and Polyurethane Insulated Tie Plates.