For belt-drive and direct-drive pumps not subject to extreme operating conditions. Also for use in the forepump of a diffusion pump system with polyphenyl ethers, silicone and ester-based pump fluids.

Permits cooler pump operation, lower maintenance, longer fluid life, reduced power consumption. Reduces backstreaming. Protects O-rings.

Ultimate pressure at 25°C (77°F), 8.5 x 10-5 torr. Pour point, -15°C (+5°F). Flash point, 212°C (415°F).