Ultratherm is a premium and extreme high-performance lubricant series for roller and journal bearings, representing the thermally and chemically most stable products, that are currently available on the lubricant market. The PFPE ultra-high-vacuum pump greases operate in a vacuum up to 10-9 mbar and are oxidation and temperature-resistant from -60 °C up to approx. 250 °C. They offer an excellent compatibility with elastomers, very high-pressure stability and lowest evaporation losses.