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-704 is capable of attaining vacuum in the 10-6 to 10-8 range without the use of a cold trap. The 704 is a rugged fluid that withstands exposure to air at operating temperatures and recovers quickly.
Specialty Fluids is now offering a drop-in replacement for DC-704. Pumps containing the Dow Corning products can be topped off with the corresponding MT 704 Diffusion Pump Fluid. MT fluids are completely miscible with their Dow Corning counterparts.