Heat Conductive silicon?

[PaulMel]

I picked up a couple hot water solar panels that need some work. The absorber plate has separated in spots from the pipes. I want to secure them back to the pipes with a thermally conductive paste/silicon.Can anyone give me any details about this stuff I've hear about before ? I think you can get it with copper in it.

Thanks.

[stop4stuff]

Would this be the sort of stuff you're looking for?

Its the white stuff between power transistors and heat sinks.

http://www.dowcorning.com/content/etronics/etronicswet/etronics_wet_comov.asp

Try a google searh for thermal conductive silicone.

...note the 'e' on the end... silicon (sand=silicon dioxide) has poor thermal conductivity.

[Jon Miller]

Surly if its pure copper then soldering it back on we be the best way ?

[crashk6]

There are two compounds that maybe being referenced here. Is he indeed looking for heatsink compound, or what seems a more logical thought it is thermal silicone rubber... the type dispensed as a jell-liquid, like silicone caulk, it's widely used as an assembly glue in high heat situations... a particular formulation is even sold as engine gasket sealent material.

Most heatsink compound does indeed have supended metals... but then so does some of the thermal silicone rubber... supended copper generally. Is the later indeed what your looking for? If so try the auto parts store. But check the temp range on the package those formulations may require quite a bit of heat to "bake" and form the intended thermal bond. You may have to order it to get the right formulation... there are many.

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crashK6