Sullins Connector Solutions offers a variety of insulator materials to suit different requirements, with each material available in different colors. PA9T is a high temperature material that can support up to 150°C of operating temperature. PPS material has different grades and temperatures. Ryton R4 can withstand up to 200°C, and Ryton R7 supports up to 220°C. Finally, PEEK is tan in color and is suitable for applications that require the connector to withstand temperatures of 250°C. Most often PEEK insulators are used with Beryllium Nickel contacts and are fully gold plated.