SUPER SILICON-704 diffusion pump oil is a single component, clear silicon based Diffusion Pump Oil that is chemically equivalent to DC-7O4.

SUPER SILICON-704 diffusion pump oil possesses excellent heat-stability, good resistance to oxidation and radiation. Its saturation vapour pressure is very low under room temperature, and changes sharply with the variation of temperature.

The minimal vacuum level can reach 10-9 mm Hg so the oil is most suitable to be used where ultra high vacuum with long service life is required. This oil has excellent thermal stability in addition to low vapour pressure to ensure optimum performance.

SUPER SILICON-704 diffusion pump oil performs well in tough, rugged applications with quick pump down, even after exposure to air at high temperatures. It is thermally and chemically stable, which keeps pump jets free of tars and hard carbon.