Dow Corning's DC-700 Series Silicone Diffusion Pump Fluids are perfect for applications requiring high vacuum with fast pumping of large volumes of gas. They offer longer service life resulting in fewer oil changes, faster pumping and minimal back-streaming. The DC-700 series is used extensively in the Aerospace, semiconductor and vacuum coating industries.
DC-705 is a single component diffusion pump fluid intended for use in applications requiring ultra-high vacuum with minimal back-streaming. DC-705 has the best resistance to radiation and a high spontaneous ignition temperature.
Specialty Fluids is now offering a drop-in replacement for DC-705. Pumps containing the Dow Corning products can be topped off with the corresponding MT 705 Diffusion Pump Fluid. MT fluids are completely miscible with their Dow Corning counterparts.