My TO-92 voltage regulator was getting a little hot, so I bought a heat sink for it (I was a little surprised they actually make them for TO-92 cases). It's a press-on heat sink, and it's pretty snug when I press it on. Normally I use thermal glue on my TO-220 heat sinks, but should I use glue on this one? Would it be a bad idea for some reason, since the TO-92 voltage regulator is a plastic case?
Heat sink: Aavid Thermalloy 575200B00000G
Datasheet: http://www.aavid.com/sites/default/files/literature/Aavid-Board-Level-Heatsinks-Catalog.pdf#page=68
Thermal Glue: http://www.arctic.ac/worldwide_en/tg-003.html

 

I use thermal compound, it is non adhesive, Wakefield Engineering.
Max.

 

There seems little risk in trying it.

Remember, it is ok for most transistors to run hot unless they are exposed so that it could be touched easily. It is often just fine for a transistor package without a heatsink to be at the temperature of boiling water.