Thermal Adhesive question?

[mnm99]

Currently I have been using Arctic silver Thermal adhesive. I'm looking for the same thing, but I need more quantity. Anything out there that will compare and not cost a lot of money?

 

[NoNotAgain]

McMaster is probably the easiest to deal with, without being in the trade. http://www.mcmaster.com/#thermal-epoxy-adhesives/=wekcld

If you're a business, one of the Parker Hanfiln companies, Chomerics are the guys to go to. Chomerics makes and sells both thermal and conductive products.

 

[mnm99]

Thanks I'll look into them.

 

[mds82]

They also sell in much large quantities which is less expensive : http://www.arcticsilver.com/epoxy.htm I have bought many 50 gram tubes of this. There are 4 different cure times available as well from 5 minutes to 90 minute working time depending on what your application is.

 

[continuum]

Yep, 50g of Arctic Silver Thermal Adhesive is one way to go. If you don't find anything you like at McMaster, Mouser and Digi-key usually also have plenty of selection.

 

[RoGuE_StreaK]

Sorry to hijack, but for LED mounting (adhesive) is it preferable to use Arctic Silver or Arctic Silver Alumina?

 

[DellSuperman]

As far as i know, Artic Silver alumina is not an adhesive. The compound will thicken but will not harden.
So your MCPCB has to be held in place by screws or reflector.

 

[RoGuE_StreaK]

The one listed here seems to indicate it's an adhesive, unless they have their info mixed up (quite possible)

"Arctic Alumina thermal adhesive is a two part permanent adhesive for thermal joints in minimum bond line applications. It is not intended to be used between a CPU and the CPU heatsink. On a CPU please use a thermal compound such as Arctic Silver 5, Ceramique 2 or Arctic Alumina."

From what I can gather, Alumina is preferable where you need to ensure there's no electrical connection, but which is the better from a purely thermal perspective?

 

[Epsilon]

You have two types of adhesive, the silver based (silver colored) and the aluminium oxide based (white color).

The Alumium oxide based adhesive can be used as a potting compound as it is non-capacitive and non-conductive. In retail price they to not differ a lot.
I mainly use the silver adhesive for mounting stars to heatsinks.

 

[DellSuperman]

The one listed here seems to indicate it's an adhesive, unless they have their info mixed up (quite possible)

"Arctic Alumina thermal adhesive is a two part permanent adhesive for thermal joints in minimum bond line applications. It is not intended to be used between a CPU and the CPU heatsink. On a CPU please use a thermal compound such as Arctic Silver 5, Ceramique 2 or Arctic Alumina."

From what I can gather, Alumina is preferable where you need to ensure there's no electrical connection, but which is the better from a purely thermal perspective?

There is the 2 part kind which is the adhesive ones & there is the work-on-its-own kind, which is the non adhesive kind..

 

[dc38]

Double sided thermal tape from 3m?