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Vacuum Pump Fluids
Krytox® VPF
TMC 704 Silicone
Diffusion Pump Fluids
TMC 705 Silicone
Diffusion Pump Fluids
Halovac®
TMC 705 Silicone Diffusion Pump Fluids
TMC 705 is a single component Pentaphenyl trimethyl trisiloxane, clear silicone fluid chemically equivalent to DC-705*.
           
Developed for use in ultra high vacuum of 10-9 Torr (untrapped) and 10-11 (trapped), TMC-705 performs well in high purity metallizing applications where quick pumpdown is needed, as well as thermal, radiation and chemical stability.          

Because of its low vapor pressure, TMC-705 can reduce the chances for contamination in untrapped systems by a factor of 100 or more compared to TMC-704 and other fluids. The vapor pressure is so low, that deepest vacuum levels can be obtained with water cooled baffles alone.

*DC-705 is made by Dow Corning®

TMC 705 Silicone Diffusion Pump Fluid
Using TMC's reclamation services, TMC 705 can be reclaimed a number of times.
Summary:
• Thermally and chemically stable• Quick pumpdown
• Ideal for high gas load applications• Pump jets stay clean
• Chemically equivalent to DC- 705• Metallurgical and research needs
• Aerospace/electronics industries needs• Reclaimable by TMC
Specifications:
• Vapor Pressure @ 25° C (77°F)• 10-8 to 10-10 Torr
• Viscosity @ 25° C (77°F)• 37 cSt
• Boiling Point @ 0.5 Torr• 215° C (101ºF)
• Specific Gravity @ 250° C (77°F)• 1.065
• Flash Point (open cup)>210° C (980ºF)
• Color• Light straw