The PTFE Insulated Sleeves, offered by us, are applicable for high temperature and high frequencies or both. Our PTFE Sleeves and Teflon Sleeves possess excellent electrical properties, which remain practically constant over a wide range of frequencies, temperature (-600 to +2600 C) and humidity and has a very low loss factor.Advantages Meets JSS-54802 Specification Resistance to fire Resistance to chemicals Corona