Bergquist A2000 Series Self-Adhesive Thermal Gap Pad, 0.04in Thick, 2W/m·K, Silicone, 8 x 16 x 0.04in

The Bergquist thermal interface and electrical insulator between electronic components and heat sinks. In the thickness range of 10 to 40 mm and it is supplied with natural tack on both sides, allowing for excellent compliance to the adjacent surfaces of components. The 40 mil material thickness is supplied with lower tack on one side, allowing for burn-in processes and easy rework.

Fiberglass reinforced for puncture, shear and tear resistance
Electrically isolating