Lonestar Sealing Technologies is a manufacturer and distributor of industrial gaskets for the oil, gas, and petrochemical industries. The document lists the various product types offered including API ring joint gaskets, spiral wound gaskets, expanded PTFE products, graphite sheet, compressed sheet materials, corrugated gaskets, heat exchanger gaskets, flange insulation kits, Kamprofile gaskets, and packing materials. Lonestar operates under a quality management system certified to ISO 9001:2008 standards to ensure high product quality for applications that involve corrosion, high heat, and pressure.