SYG-2700 SILICON HIGH VACUUM GREASE
Product Description
SYG-2700 Silicon High Vacuum Grease is a homogenous mixture
of Poly-Dimethyl Siloxane
oils and aerogel of silicone oxide which forms a translucent
material of grease like consistency which is maintained over a wide temperature range of - 60 °C to 250 °C. It does neither crack nor dry-up or
separate into layers due to aging. It spreads
uniformly and adheres
on to dry surfaces of metals, ceramics, rubbers, PVC, electrical insulation etc.
It possesses very good electrical properties of high volume resistivity, dielectric constant and strength, low dissipation factor, high resistance to arcing and corona all of which are little effected by high humidity. It is chemically inert and nonreactive and thus does not corrode materials and on the contrary helps to protect and maintain the flexibility of materials made of natural or synthetic rubbers, vinyl plastics and similar materials.
Application:
Non-oxidizing and strongly hydrophobic highly stable at a temperature of - 60 °C to 250 ° C., resistant to most chemicals and high resistance to aging. It is used in manufacture of semiconductor devices, isolators of high voltage contacts, for industrial applications as a moisture proof dielectric seal cum lubricant for ignition system, engine, battery, switchgear, battery terminal, cable connector, X-Ray, radio electric equipment’s. It also can be used as a valve and O-ring lubricant
Advantage
Resistant to dilute solutions of acids alkalinize and salts and have high dielectric indexes, which do not depend on temperature. Consistency and insulating properties remain almost unchanged over a wide range of temperatures. Does not form hard deposits and maintains excellent lubricating and sealing properties. Very effective in the treatment of insulators and switch installations especially in heavily industrialized and coastal areas.
Typical Properties
SYG-2700 |
0 |
1 |
2 |
3 |
Colour |
Translucent white |
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Odour |
Odour less |
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Temp. Range |
-60 to 250 ° C |
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Drop Point |
None |
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Penetration |
370 |
320 |
270 |
240 |
Flash Point of Base oil |
>300 ° C |
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Freedom from abrasive particles |
No perceptible scratch on plastic test plates |
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Resistance to high temp. |
(200+/- 5 °C.
for 30 hrs.) |
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a). Evaporative loss |
2.0 % (max. |
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b). Oil
separation |
8.0% (max.) |
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Low temperature stability |
|
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(Appearance at -50°
C.) |
No crack or solidification |
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Electrical : |
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a). Volume
resistivity (ohm/cm at 27 ° C.) |
1.35 X 10/15 |
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b). Dielectric constant 1 MHz |
2.82 |
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c). Dissipation factor at KHz |
Tan less
then 0.0005 |
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Heat Resistance |
>200°C |
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Discharge Rate |
0.8g/sec |
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SP. GR. |
0.81 |