Thermally conductive plastic or diecast aluminum 2

[berkshire]

I have been asked to draw up a heat transfer pad for a medical device.This is a first draft, subject to external peer review later. Right now having drawn the thing up, the question "What are you going to make it out?" of comes up.

Most of the device will be injection molded plastic, and the suggestion has been made, that this be used for the heat transfer pad. I had suggested Diecast Aluminum, but the feeling was that for a 500 part run that the dies would be much more expensive than a conventional injection molding die. Thermally conductive plastic has been suggested, however I know very little about this other than an article I found on google. Can anybody out there point me in the right direction.
B.E.

http://www.designnews.com/article/165-Thermally_conductive_plastics_beat_the_heat.php

 

[KENAT]

BS308 only went out in the late 90's I think, pretty sure we were only just goind to BS888 (which is really a compendium of various ISO standards) in around 99-2000, but we may have been a bit behind the times!

Posting guidelines faq731-376

http://eng-tips.com/market.cfm?

(probably not aimed specifically at you)
What is Engineering anyway: faq1088-1484​

 

[berkshire]

Gentlemen,
My customer reported back to me today. After discussion with the molder, they are going to use metal for the heat transfer pad.
One thing that disturbed me, but did not surprise me, is that the proto typing and mold building is going to be done in Taiwan.
Anyway my part is done, I thank everybody for their suggestions and please consider this thread closed.
B.E.