If you need to keep a consistent flow of heat through your equipment, this silicone putty from RS PRO is a reliable solution. Use it to fill in gaps between surfaces and its excellent thermal conductivity will prevent any insulation by the air.
The silicone putty comes supplied in a large 1 kg pack which will last you for a while. It has good long-term stability, which reduces the need for maintenance once you've used it. It's silicone-based, giving it a broad operating temperature range that means it's suitable for use in the most demanding hot and cold environments.
The silicone putty is highly resistant to electrical current. This makes it ideal for use in electronics. You can also use this silicone putty for automotive applications, as well as power supplies.

• Silicone material
• Operating temperature range of -50°C to +200°C
• Pack size of 1 kg
• Comes as a paste
• Thermal conductivity of 5 W/m∑K