Apiezon N Grease exhibits extremely low vapour pressures at ambient temperatures, 6×10^-10 torr at 20 °C, which are further improved by reductions in temperature to the cryogenic region.

• Can withstand frequent cycling between cryogenic temperatures as low as −273 °C and +30 °C
• Craze-free at cryogenic temperatures
• Ability to fill the micropores of adjoining surfaces, so improve thermal contact
• Powerful 'gettering' action, meaning it absorbs potentially harmful grease and chemical impurities on metal and glass surfaces
• Easy to clean, use and remove as it is soluble in hydrocarbon and chlorinated solvents

Cryogenic high vacuum grease. Silicone and halogen free. A cushioning grease ideal for burette taps and mated glass surfaces.