Keratherm U 90 thermal interface material from MH&W is suited for applications in which contamination concerns prohibit the use of silicone-based thermal pads but where high levels of thermal conductivity are needed for sufficient thermal transfer in hot electronic devices. The material consists of a ceramic-filled polyurethane film with thermal conductivity of 6.0 W/mK and thermal impedance of 0.05 K in2/W. The material has a high voltage breakdown property of 4.0 kV. It provides strong perforation protection with a tensile strength of 2.5 N/mm2 and a Shore A hardness of 70. Typical applications include laser equipment, lighting systems, solar energy, disc drives, and aerospace electronics.