HEAT TRANSFER COMPOUND

Product Description

PETBOND-2760 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 is designed for use as a heat transfer compound in both the electrical and electronic industries, and is characterized by its high thermal conductivity, high dielectric constant, and high dissipation factor. 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.

Applications

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.

Benefits

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

PETBOND-2760	0	1	2	3
Color	Translucent white
Odor	Odor less
Temp. Range	-60 to 250 ° C
Drop Point	None
Penetration	370	320	270	240
Viscosity at 30° C
Flash Point of Base oil	>300 ° C
Freedom from abrasive particles	No perceptible scratch on plastic test plates
Resistance to high temp.	(200+/- 5 °C. for 30 hrs.)
a). Evaporative loss	2.0 % (max.
b). Oil separation	8.0% (max.)
Low temperature stability
(Appearance at -50° C.)	No crack or solidification
Electrical:
a). Volume resistivity (ohm/cm at 27 ° C.)	1.35 X 1015
b). Dielectric constant 1 MHz	2.82
c). Dissipation factor at KHz	Tan less than 0.0005
Heat Resistance	>200°C
Discharge Rate	0.8g/sec
SP. GR.	0.81