The high electrical conductivity of H20S could be a nuisance when mounting
Luxeon emitters -- or thermcouples.
Omegabond 101 works fine here. Temp rise in the joint is about negligible,
it's relatively inexpensive and readily available. There are certainly
other epoxies that would also work well. Luxeon recommends several .

"jim rozen" wrote in message
...
In article , Ted Edwards says...

I guess if I were doing this and needed high thermal
conductivity I would go with EpoTech's silver-filled
epoxy, like the H20S. Nice stuff.