Sorry Jay. I did not try to order the material. I walked down to my workshop and found the material that I have used. It is call Silver Ice 710 and is made by Timtronics out of NY. I had the stuff for a long time. It is a gray grease and is not a change phase material. I looked at the cut sheets on the Loctite and the Silver Ice 710. Looks like the Silver Ice has a better electrical and thermal conductivity than the Loctite. Tomorrow I will call my old company and get contact for Loctite.
________________________________ From: Jay Summet <j...@summet.com> Sent: Monday, February 27, 2017 7:26 PM To: ROBERT; Electric Vehicle Discussion List Subject: Re: [EVDL] Silicon heat sink grease Thanks for that link. Unfortunately, when I tried to order, it turns out they are not in stock, have a minimum 53 piece order quantity, and a 5-6 week shipping delay. [I also didn't know how many I'd need, because the 1.57 x 1.57 size does not have any units on it, so I didn't know if it was mm, cm, or inches.] Ideally if I was to use Silverstrate, I'd like to buy pre-cut TO-220 and TO-247 sized pads for the MOSFETS and DIODES. Jay On 02/27/2017 08:24 PM, ROBERT wrote: > You can get the Loctite Silverstrate ECF1000 at Diverse Electronics. > > > http://www.diverseelectronics.com/products/Loctite-ECF1000-Silverstrate-AK-Phase-Change-Material-1-57-x-1-57-p7562/ LOCTITE ECF1000 Silverstrate AK Phase Change Material 1.57 ...<http://www.diverseelectronics.com/products/Loctite-ECF1000-Silverstrate-AK-Phase-Change-Material-1-57-x-1-57-p7562/> www.diverseelectronics.com LOCTITE Silverstrate is an electrically conductive phase change thermal interface material suitable for use between a heat sink and a variety of heat dissipating ... > > LOCTITE ECF1000 Silverstrate AK Phase Change Material 1.57 ... > <http://www.diverseelectronics.com/products/Loctite-ECF1000-Silverstrate-AK-Phase-Change-Material-1-57-x-1-57-p7562/> LOCTITE ECF1000 Silverstrate AK Phase Change Material 1.57 ...<http://www.diverseelectronics.com/products/Loctite-ECF1000-Silverstrate-AK-Phase-Change-Material-1-57-x-1-57-p7562/> www.diverseelectronics.com LOCTITE Silverstrate is an electrically conductive phase change thermal interface material suitable for use between a heat sink and a variety of heat dissipating ... > www.diverseelectronics.com<http://www.diverseelectronics.com> Shop Electronics Products Online, Electronic Components ...<http://www.diverseelectronics.com/> www.diverseelectronics.com Diverse Electronics is an authorized electronic components and electromechanical parts distributor. In-stock inventory ready to ship. No minimums. Shop Today. > LOCTITE Silverstrate is an electrically conductive phase change thermal > interface material suitable for use between a heat sink and a variety of > heat dissipating ... > > > I just did a google search and got this supplier. This compound is > electrically conductive. I would be careful. Very seldom have I used a > conductive thermal compounds. I would check conductivity between the > lead and the device. And for sure, I would check conductivity after I > installed the Diodes and Mosfets. > > > ------------------------------------------------------------------------ > *From:* EV <ev-boun...@lists.evdl.org> on behalf of Jay Summet via EV > <ev@lists.evdl.org> > *Sent:* Monday, February 27, 2017 6:13 PM > *To:* ev@lists.evdl.org > *Subject:* Re: [EVDL] Silicon heat sink grease > > That depends upon your application. Between the controller's outside and > the base plate, I agree with you. > > However, I'm using this between the MOSFETS and DIODES and the interior > heatsync, which also doubles as one of the power rails. The circuit is > designed such that the mosfets and diode cases must be electrically > connected to the heatsync. (The heatsync is electrically isolated from > the case by a SiPad.) > > So I'm looking specifically for something that will conduct electricity > AND heat. (The MOSFET's and DIODES are connected via a screw, which will > conduct electricity, but I figure the lower the resistance the better.) > > The carbon grease is electrically and thermally conductive, but it > appears to be designed for switch contacts more than simiconductor > heatsync applications, and is probably not as conductive as a silver > grease, so I'm still poking around looking at what my options are to > purchase. > > > Jay > > On 02/27/2017 04:55 PM, Mark Hanson via EV wrote: >> Hi folks >> Heat sink grease should be NON conductive electrically but thermally >> conductive white grease. You can also use thermosil less thermally >> conductive but less messy or Kapton. >> Best regards >> Mark >> >> Sent from my iPhone >> _______________________________________________ >> UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub [http://www.evdl.org/images/evdl.jpg]<http://www.evdl.org/help/index.html#usub> EVDL Subscription Information and Help<http://www.evdl.org/help/index.html#usub> www.evdl.org About the EVDL: The Electric Vehicle Discussion List, founded in 1991 by EV enthusiast Clyde Visser, is an active and vital source of information and help for people ... > <http://www.evdl.org/help/index.html#usub> [http://www.evdl.org/images/evdl.jpg]<http://www.evdl.org/help/index.html#usub> EVDL Subscription Information and Help<http://www.evdl.org/help/index.html#usub> www.evdl.org About the EVDL: The Electric Vehicle Discussion List, founded in 1991 by EV enthusiast Clyde Visser, is an active and vital source of information and help for people ... > > EVDL Subscription Information and Help > <http://www.evdl.org/help/index.html#usub> [http://www.evdl.org/images/evdl.jpg]<http://www.evdl.org/help/index.html#usub> EVDL Subscription Information and Help<http://www.evdl.org/help/index.html#usub> www.evdl.org About the EVDL: The Electric Vehicle Discussion List, founded in 1991 by EV enthusiast Clyde Visser, is an active and vital source of information and help for people ... > www.evdl.org<http://www.evdl.org> EVDL - The Electric Vehicle Discussion List<http://www.evdl.org/> www.evdl.org The Electric Vehicle Discussion List (EVDL), founded in 1991 by EV enthusiast Clyde Visser PE, is the Internet's oldest and most comprehensive resource supporting EV ... > About the EVDL: The Electric Vehicle Discussion List, founded in 1991 by > EV enthusiast Clyde Visser, is an active and vital source of information > and help for people ... > > >> http://lists.evdl.org/listinfo.cgi/ev-evdl.org EV -- Electric Vehicle Discussion List - lists.evdl.org ...<http://lists.evdl.org/listinfo.cgi/ev-evdl.org> lists.evdl.org The Electric Vehicle Discussion List is a forum for discussing the current state of the art and future direction of electric vehicles (EVs). 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