SV-SIGMA+ oil gives a very high vacuum of 10(-9) Torr. It is chemically inert. It is compatible with all diffusion pumps and has very low vapor pressure. It is an alternative of DC-705 and Hivac F5.

For More details please visit:- http://supervacoils.com/silicone-ultra-high-vacuum-diffusion-pump-oil-sv-sigma-plus/