Since 1985 United has been a global leader in high-performance thermoplastic internal pipeline lining systems for pipeline integrity. We have installed over 20,000 miles of the Tite Liner® system from 2 inches to 52 inches in diameter – with operating pressures up to 7,500 psi – in more than 30 countries worldwide. Whether protecting new pipelines from corrosion and abrasion or rehabilitating existing pipelines, we combine high-quality, innovative solutions with unparalleled expertise, service and safety.