Hi guys,

In our testing the type of thermal paste does not make a difference if the surfaces are really smooth (16 µin or better surface).  Where it makes a difference is in rougher surfaces.  And Brian is right, more is not better.

For electrical isolation we have switch from a thixotropic phase change material (Isostrate) to T-gard with great results.

Just my 2 ¢

Phil

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Brian Ellis
Sent: Wednesday, January 30, 2013 9:52 AM
To: [log in to unmask]
Subject: Re: [TN] Gray Thermal Heat Sink Compound-paste

It depends.... on its composition. If it's grey, it may rely on fine metallic powder. I have some Thermaltake TG2 which the makers claim has low electrical conductivity but I suspect it may have metal in it. I use it for CPUs to radiators, so its electrical characteristics are unimportant. Consult the manufacturer's data. BTW, don't put on an excess; if it squeezes out, you're wasting a costly product :(

Brian

On 30/01/2013 15:41, Victor Hernandez wrote:
> Folks,
>
>     Can excessive saturation of the SMT components-BGA, etc. devices with the above stated product can a leakage condition.   Cosmetic wise  it doesn't look pretty.   I am concern functionally over a long period of time.
>
> Victor,
>
> ______________________________________________________________________
> This email has been scanned by the Symantec Email Security.cloud service.
> For more information please contact helpdesk at x2960 or 
> [log in to unmask] 
> ______________________________________________________________________
>

______________________________________________________________________
This email has been scanned by the Symantec Email Security.cloud service.
For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________

______________________________________________________________________
This email has been scanned by the Symantec Email Security.cloud service.
For more information please contact helpdesk at x2960 or [log in to unmask] 
______________________________________________________________________