SYF-1155 SILICONE DIFFUSION PUMP OIL

Product Description

Silicone diffusion pump fluid is a methyl phenyl silicone based diffusion pump fluid. The product has been formulated with an advanced technology additive system for superior performance. It shows excellent resistance to oxidation, wear, rust and corrosion. Silicone Diffusion Pump Fluid does not degrade when exposed to heat or intake gas. These are clear, colorless; fluorinated synthetic oils that are nonreactive, nonflammable, and safe in chemical and oxygen service, and are long-lasting.

Features & Benefits

  •  Absolutely safe, as they has no flash or fire point
  • Chemical inertness with almost all chemicals and gases
  • High thermal stability and oxygen resistance
  • Excellent compatibility with metals, plastics, Elastomers
  • High dielectric properties 
  • Good radiation stability
  • Environmentally acceptable
  • Excellent carbon and varnish control

Applications

·       Silicone Diffusion Pump Fluid is vacuum Systems in:

·       Aerospace

·       Electronics

·       Metallurgy

·       Vacuum coatings

·       Nuclear energy

·       Research applications

Typical Properties

Silicone Diffusion Pump Oil

 

Chemical Profile

Tetramethyltetraphenyl-Trisiloxane

Color

Transparent

Ultimate Vacuum (untapped)

10E-7 to 10E-8 torr

Ultimate Vacuum (trapped)

to 10E-11 torr

Extrapolated Vapor Pressure

2 x 10E-8 torr

Specific Gravity at 25°C

1.07

Viscosity at 25°C

35º to 45ºC

Flash Point (open cup)

221°C

Boiling Point (at 0.5 torr)

215°C

Typical Boiler Temperature

230°C – 240°C

Surface Tension

37.3 dynes/cm

Heat of Vaporization (kcal/g mole)

25.5/200°C

Refractive Index at 25°C

1.5500 – 1.5600

Congealing Point

-35°C

Shelf Life

5 Years

Hazardous Ingredients

None