Diffusion Pump Fluid

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Silway 5705
Description
 
Silway 5705  Diffusion Pump Fluid is a colorless to straw-colored, single-component fluid designed for ultrahigh vacuum applications in the range of 10⁻⁹ to 10⁻¹⁰ torr (untrapped) and 10⁻¹¹ torr (trapped). The vapor pressure and backstreaming rate of Silway 5705 Diffusion Pump Fluid are so low that the use of traps or refrigeration is unnecessary for some ultrahigh and ultraclean vacuum applications. It has the highest phenyl content among all silicone diffusion pump fluids and the best radiation resistance.
 
 
 
Typical Physical Properties
 
Ttems3000cst
Specific Gravity at 25°C (77°F)1.09
Viscosity at 25°C (77°F)175
Surface Tension36.5
Molecular Weight546
 
 
Key Features
  • Shorter conditioning runs
  • Faster pumping
  • Minimal backstreaming
  • Longer service life
  • Cleaner systems, less maintenance required
  • Faster cycling, reduced downtime, less frequent fluid replacement
 
 
Typical Applications
Producing ultrahigh and ultraclean vacuum
 
Use
Electronics 
Evacuating television and cathode-ray tubes Evacuating power and microwave tubes Vapor deposition of thin films by sputtering or   evaporation in devices and microcircuits
 
Metallurgy
Electron-beam operations; high-vacuum furnaces
Melting, degassing and sintering refractory metals; thick-film deposition
 
Vacuum Coatings
Aluminizing television tubes Optical coatings 
Decorative coatings for novelties and  automobile parts
Coating architectural glass, plastic and metal sheet 
 
 
Packing
200L drums
 
Storage
Be stored in closed containers
 
Shelf Life
36 months