A 99.99% Virgin PTFE non-hardened tape, manufactured to the highest specifications. This premium tape provides a positive seal with just one and a half wrap. Compatible with a broad range of gases and liquids. Compatible with a wide range of piping materials. Effective across a broad temperature range (-280° to +275°C). Only a few wraps required. Chemical resistant : Extreme resistance to most chemicals, corrosives, caustics, oils, solvents and gases, approved for food handling equipments, oxygen and biological systems.