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Vaccum Diffusion Pump Oil Silibase-9702

Item No.: Silibase-9702

Product Name: Vaccum Diffusion Pump Oil

Equivalent Brand: Diffusion Pump Oil Dow Corning 9702


1. Mixed phenylmethyl-dimethyl cyclosiloxane

2. 9702 Super high vacuum diffusion pump oil

3. 9702 diffusion pump fluid

4. Phenylmethylsiloxane Oligomers

5. Oil for diffusion pump

6. Silicone oil for diffusion pump

7. Silicone diffusion pump oil

Chemical structure:


Vaccum Diffusion Pump Oil Silibase-9702 is a kind of general purpose oil designed for fast pumping oflarge volumes of gas. It is used to produce vacuums in the range of 10-5 to10-7 torr. It possesses excellent heat stability, good resistance to oxidationand radiation. Its vapour pressure is very low under room temperature, andchanges sharply with the variation of temperature

Technical Index:

Chemical composition: Mixed phenylmethyl-dimethyl cyclosiloxane

Ultimate Vacuum,torr(untrapped):10-6

Saturated Vapor Pressure,torr: 1x10-6

Specific Gravity: 1.08

Viscosity (25℃), cSt: 40±3

Flash Point℃: 300

Refractive Index 25℃: 1.51-1.53

DiffusionPump Oil Silibase-9702 can be used in varietyof applications, including:

Electrical and electronics industry

TV tubes, fluorescent tubes, cathode ray tubes

Ordinary bulbs


 Rectifier metallised film vacuum system

Optical industry

Surface improvements

Anti reflective coatings

Optical filters and mirrors

Metallurgy industry

 High-vacuum furnaces

 Melting, degassing and sintering refractory metals; thick-filmdeposition

Plastics industry

 Surface improvements

 Mirror coatings

 Protective coatings

 Film coatings

Other industries

Processing metals and fuels


Molecular plants

R & D plants

Mass spectrometry


Be used as transmission fluid in high-temperature carriers andvarious instruments.

Package, Transportation & Storage

Vaccum Diffusion Pump Oil Silibase-9702 isavailable in 1kg plastic bottles, 1gallon plastic drums, 5kg plastic drums,25kg plastic drums, 25kg Iron drums or 200kg Iron drums.

Transport as non-hazardous chemicals, keeping away from rain andsunlight.

Shelf life: 2 years. 


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