Thermal Grease

Thermal grease is known by a number of names including:
• CPU grease
• heat paste
• heat sink compound or paste
• thermal compound, gel or paste
• thermal interface material.
It is a thermally conductive material which is usually electrically insulating which helps to dissipate heat from a device. Its main function is to ensure there is no air space between which would act as a thermal insulator. It fills in the microscopic imperfections on the heatsink and device.
It is most commonly used between a CPU and a heat sink to maximise heat transfer. It is also used on other electronic components which create heat and also need a heat sink such as MOSFET transistors.
There are other types of products to eliminate the air gap under a heat sink:
• Thermal Adhesive
• Thermal Gap Pads

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Description Price Thermal Conductivity Material Maximum Operating Temperature Minimum Operating Temperature Chemical Component Operating Temperature Range Physical State
RS Stock No. 217-3835
BrandRS PRO
£10.40
Each
Units
2.9W/m·K Silicone +200°C -40°C Powdered Metal Oxides, Silicone Oil -40 → +200 °C -
RS Stock No. 554-311
BrandRS PRO
£5.56
Each
Units
0.65W/m·K Metal Oxide +200°C -40°C Powdered Metal Oxides, Silicone Oil -40 → +200 °C -
RS Stock No. 707-4736
BrandRS PRO
£16.67
Each
Units
5W/m·K Silicone +180°C -40°C - -40 → +180 °C -
RS Stock No. 909-2092
BrandRS PRO
£63.02
Each
Units
3.4W/m·K - +125°C -30°C - -30 → +125 °C -
RS Stock No. 707-4724
BrandRS PRO
£14.83
Each
Units
3.6W/m·K Silicone +180°C -40°C - -40 → +180 °C -
RS Stock No. 915-6118
BrandRS PRO
£15.78
Each
Units
4W/m·K Non-Silicone +150°C -50°C - -50 → +153 °C -
RS Stock No. 707-4733
BrandRS PRO
£10.54
Each
Units
1.8W/m·K Silicone +180°C -40°C - -40 → +180 °C -
RS Stock No. 915-6105
BrandRS PRO
£12.26
Each
Units
2W/m·K Non-Silicone +150°C -50°C - -50 → +150 °C -
RS Stock No. 915-6111
BrandRS PRO
£162.41
Each
Units
4W/m·K Non-Silicone +150°C -50°C - -50 → +152 °C -
RS Stock No. 915-6109
BrandRS PRO
£89.28
Each
Units
2W/m·K Non-Silicone +150°C -50°C - -50 → +151 °C -
RS Stock No. 180-5304
BrandRS PRO
£116.15
Each
Units
3W/m·K Silicone +200°C -50°C - -50 → +200 °C -
RS Stock No. 180-5305
BrandRS PRO
£180.36
Each
Units
5W/m·K Silicone +200°C -50°C - -50 → +200 °C Paste
RS Stock No. 180-5306
BrandRS PRO
£3.80
Each
Units
1.4W/m·K Silicone +300°C -30°C - -30 → +300 °C Paste
RS Stock No. 180-5307
BrandRS PRO
£4.60
Each
Units
2.7W/m·K Silicone +300°C -30°C - -30 → +300 °C Paste
RS Stock No. 180-5297
BrandRS PRO
£38.85
Each
Units
1.5W/m·K Non-Silicone +150°C -30°C - -30 → +150 °C Paste
RS Stock No. 180-5299
BrandRS PRO
£44.82
Each
Units
5W/m·K Silicone +200°C -50°C - -50 → +200 °C Paste
RS Stock No. 180-5312
BrandRS PRO
£126.56
Each
Units
3.9W/m·K Silicone +300°C -30°C - -30 → +300 °C Paste
RS Stock No. 180-5301
BrandRS PRO
£20.90
Each
Units
2W/m·K Silicone +200°C -50°C - -50 → +200 °C Paste
RS Stock No. 180-5308
BrandRS PRO
£9.65
Each
Units
3.9W/m·K Silicone +300°C -30°C - -30 → +300 °C Paste
RS Stock No. 180-5314
BrandRS PRO
£138.22
Each
Units
2W/m·K Silicone +200°C -60°C - -60 → +200 °C Paste
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RS PRO 1805302 Silicone Thermal Interface Putty, 3.2W/mK. ...
Description:
RS PRO 1805302 Silicone Thermal Interface Putty, 3.2W/mK. High compressibility, non-curing, pump out resistant, long term stability, electrical insulation, siloxane volatiles D4∼D20 0%ApplicationsBattery packs, battery housings, power supplies, power cable connectors. Automotive ECU (electronic control units), power supplies, microprocessors, displays and consumer electronics.
RS PRO 1805303 Silicone Thermal Interface Putty, 2.0W/mK. ...
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RS PRO 1805310 Silicone Thermal Interface Grease 1.4W/mK. ...
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