Tpcm FSF52 is a free standing film. It contains no substrate. At temperatures greater than 52?C Tpcm FSF52 changes into a molten state and under low closure force wets the heat sink and component surfaces to create a very thin low thermal resistance interface. Tpcm FSF52 is thixotropic and won't flow from the interface.
Tpcm FSF-52 has superior thermal performance comparable to the highest performing grease and phase change products available. Since it is a free standing film it is easy to handle and is a great replacement for messy grease.