3M™ Thermally Conductive Silicone Interface Pad 5590H is a highly conformable, slightly tacky silicone elastomer pad. Designed to provide heat transfer path between heat generating components and heat sinks, heat spreaders or other cooling devices.
 
Good thermal conductivity (3.1 w/m-k)
Good softness and is conformable at low pressure ( Shore 00 = 50)
Softness results in low stress on board components
Good dielectric properties
Slight tack allows pre-assembly. Good wettability for better thermal conductivity
UL 94 V-0
High temperature résistance
Tacky both sides
Thickness : 0.5 mm,1.0 mm, 1.5 mm, 2.0 mm, custom thickness
Larger sheet size is available