Aeroflex 4000SF is a high-performance, compliant, silicone-free thermal interface material. By coupling extremely high thermal conductivity (4.0W/m·K) with exceptional wetting characteristics, Aeroflex 4000SF provides low thermal resistance between heat source component and heat dissipation part or housing. This makes it well-suited for applications where silicone-based pads are traditionally used as well as those applications which are silicone-sensitive, especially in optical industry. Aeroflex 4000SF is naturally tacky on both sides requiring no additional adhesive coating. The natural tack allows the pad to be held in place during assembly.