NTE424 heat sink compound is a grease-like, non-silicone, non-migrating material heavily impregnated with heat-conductive metal oxides. This formulation provides high thermal conductivity, low bleed and high temperature stability. NTE424 has been engineered to solve the problems of contamination and migration associated with silicone-based products. A unique poly synthetic-based thermal grease used to insure quick, efficient heat transfer and dissipation for the full operational life of your hardware.