Thermal epoxy or Thermal grease and bolts?

I am mounting 15 Cree LEDs to get an old overhead projector to work as a video projector. the only thing I am wondering is whether thermal epoxy is better to use than thermal grease with bolts and nuts attached to a heatsink. Do both have the same heat dissipation? What I am trying to do is still use the LEDs for use with other projects in case i need them for something else.

westfw8 years ago
thermal grease and bolts should be fine; they were widely used for everything long before anyone had ever heard of "thermal epoxy."
KT Gadget (author)  westfw8 years ago
alright thanks for the help.
gmoon KT Gadget8 years ago
Grease has another advantage, too--you can easily remove / replace the LED modules, if any develop problems...