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Bearing
Greases > Electrical Contact
Greases > |
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SILICON GREASE (EQUIVALENT TO DMSI 450/10)
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SG-920 Silicon Grease is a homogenous,
translucent material of grease like consistency
which is maintained over a wide temperature
range of -50 °C to 200 °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. SG-920 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 non-reactive 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.
PROPERTIES
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TEST
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RESULT
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| Colour |
Colourless |
| Odour
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Odourless |
| Consistency
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Drop
point above 230° C. |
| Freedom
from abrasive particles |
No
perceptible scratch on plastic
test plates |
Resistance
to high temp.
(200+/- 5 °C. for 30 hrs.)
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| a)
Evaporative loss |
2.0
% (max.) |
| b)
Oil separation |
8.0%
(max.) |
| Low
temperature stability |
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| (appearance
at 50° C.) |
No
crack or solidification |
| Electrical |
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| a)
Volume resistivity (ohm/cm at
27 ° C.) |
1.35
X 10/15 |
| b)
Dielectric constant 1 MHz |
2.82 |
| c)
Dissipation factor at KHz |
Tan
less then 0.0005 |
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HM-SILICON GREASE
HM Silicon Grease is a homogenous mixture
of Poly-Dimethyl Siloxane oils and aerogel
of silicone oxide. They are translucent Odourless,
non-toxix and physiologically inert. Their
consistency and insulating properties remain
almost unchanged over a wide range of temperatures.
Grease are resistant to dilute solutions of
acids alkalinize and salts an have high dielectric
indexes, which do not depend on temperature.
FEATURES
Non-oxidizing and strongly hydrophobic highly
stable at a temperature of 60 °C.to 200
° C., resistant to most chemicals and
high resistance to aging. 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.
APPLICATIONS
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.
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