Dear Dave and others:

Thank you for the information. The number 781-406-300 has been 
disconnected. The following address will give you information about the 
thermal joint compound Type 120, just in case other people are 
interested also:

http://www.digikey.com/en/product-highlight/w/wakefield/120-series?WT.srch=1&gclid=CKG049L918wCFVFsfgod-asGRw

Best.

Dachun




On 2016-05-13 11:57, David A. Mucciarone wrote:
> The thermal joint compound I use is from Type 120, Wakefield
> Engineering, Beverly, MA 01915, 781-406-3000. I did not Google it,
> hopefully you can do that part. For what it is worth, I tried just
> using the compound (no fan) only without using the foil and the
> cartridge failed early, better than without, but early nonetheless.
> 
> Good luck,
> 
> Dave
> 
> On 5/12/2016 3:43 PM, zhangd wrote:
>> Dear David, Andy and others:
>> 
>> Thanks you for the suggestions. I am going to use fan and the 
>> conducting compound. What brand of that compound you use, David?
>> 
>> Thanks.
>> 
>> Dachun
>> 
>> 
>> 
>> On 2016-05-12 14:47, David Mucciarone wrote:
>>> I'm not sure what KC you have so this may or may not be helpful.
>>> Depending on how the previous heat cartridges came out it is possible
>>> that during removal the hole enlarged. If this happened, water can
>>> work it's way in and cause early failure. This happened on my KCIII.
>>> The solution was to shim with copper soil (had it on hand, other foil
>>> could be used), given the thickness of my foil, I simply wrapped the
>>> cartridge with one layer of foil to provide a snug fit. I then used a
>>> conducting compound to seal the top. This is a non hardening 
>>> compound,
>>> I am on the road, but will be in the lab, hopefully on Friday (if my
>>> flight ever gets off the ground) in the event you need more info on
>>> this potential solution.
>>> 
>>> David
>>> 
>>> Sent via the Samsung GALAXY S®4, an AT&T 4G LTE smartphone
>>> 
>>>  -------- Original message --------
>>>  From: zhangd <[log in to unmask]>
>>>  Date: 05/12/2016 14:55 (GMT-05:00)
>>>  To: [log in to unmask]
>>>  Subject: Frequently broken heater and thermocouple of Kiel
>>> 
>>> Dear Colleagues:
>>> 
>>>  Both the new heating cartridge and measuring resistor in our Kiel
>>> device
>>>  trap 1 are broken (not the same time) in less than two month. It
>>>  happened twice already. Any suggestions would be appreciated.
>>> 
>>>  Thanks.
>>> 
>>>  Dachun Zhang
>>>  ESS dept UCI
>> .
>>