Ultimate Thermal Compound Found?

airspirit · 02-12-2003, 02:09 PM

http://forum.oc-forums.com/vb/showth...hreadid=166720

This dude is using Locktite on his HSF, and it is beating all the other goops out there by a large margin. I don't know if this is a good idea or not, but it sure sounds interesting.

bigben2k · 02-12-2003, 02:31 PM

Loctite also has a division that makes thermal compounds... maybe they should get their heads together!

jaydee · 02-12-2003, 03:14 PM

Quote:

Originally posted by bigben2k
Loctite also has a division that makes thermal compounds... maybe they should get their heads together!

Could be the same stuff in a different container and remarked and the prices dropped by 90%! Wouldn't suprise me a bit.

I do not buy the claims that it dropps 5C over AS like in the one thread though. I think he has other issues applying AS correctly. Imagine a WW the already drops about 3-5C over any other block and then this stuff dropping it another 5C??? I think not, that is getting to close to ambient.

Kevin · 02-12-2003, 03:18 PM

It really doesn't matter that much. If you apply the thermal comound correctly, there's a very small difference going from generic goop to arctic silver. All the other new goops are around the same range as arctic silver. Because so much of heat transfer depends on how it is applied, small variances each time can usually account for the temp differences. The bottom line is that all thermal goop does is fill the microscopic imperfections in a heatsink base / CPU core to make them sit flat. If you had two mathematically flat plane pieces of metal put together, you wouldn't need goop as there would already be perfect heat transfer. I guess what i'm getting at is that after shipping, is it really worth paying so much for something like thermal paste? Save that money and get a bettter heatsink / waterblock...

airspirit · 02-12-2003, 06:19 PM

If you can get some of this for $4 at the hardware store, then use the $15 you're saving from the online order on something else. I guess the point was to demonstrate a cheap alternative that works very well.

Further, if it is all in the application, and this is easier to apply, wouldn't it be helpful for those out there that are goop-retarded?

jaydee · 02-12-2003, 08:05 PM

Yeah, if this stuff works and works permenatly then why not. I just don't think 5C gain is accurate thats all. I just dropped $9.99 for two syringes of ComUSA AS knockoff. It is actually great stuff!. Already attached about 25 WB/HS's with less than a 1/4 a tube (and the tubes are tiny). I guess I have a year or two supply. So I will not need bother testing this stuff. Can't see why the stuff is so hard to apply right though. Pretty basic.

Arcturius · 02-12-2003, 08:43 PM

I tried some Loctite thermal epoxy on a K6-2 about a year and a half ago...it worked fairly well, but not quite as good as the original AS in my test. I wish I could remember the part number; I'm pretty confident it was good stuff, since it was a leftover from when Crays were manufactured here in Chippewa.

Anyway, as Kevin alluded to, the application can make all the difference.

The particular epoxy I used was 2-part epoxy, and the directions called for the hardening agent to be brushed over one surface (the stuff was like water), while the base was to be spread on the other surface. That part started out very thick (think cold peanut butter), so I really couldn't spread it out properly.

Temperatures were better than the original epoxy AMD used to attach the sink originally (retail unit) but nothing to write home about.
When I took the HSF back off, the epoxy covered the entire heatspreader with a comparatively thick film, which came off easily with a razor blade. I would say it was about the thickness of 2-3 sheets of tissue paper.

I suspect it would have performed better, if I had been able to make a thinner application, like new cores allow, as opposed to the K6-2's heatspreader.

02-12-2003, 02:09 PM	#1
airspirit Been /.'d... have you? Join Date: Jul 2002 Location: Moscow, ID Posts: 1,986	Ultimate Thermal Compound Found? http://forum.oc-forums.com/vb/showth...hreadid=166720 This dude is using Locktite on his HSF, and it is beating all the other goops out there by a large margin. I don't know if this is a good idea or not, but it sure sounds interesting. __________________ #!/bin/sh {who;} {last;} {pause;} {grep;} {touch;} {unzip;} mount /dev/girl -t {wet;} {fsck;} {fsck;} {fsck;} {fsck;} echo yes yes yes {yes;} umount {/dev/girl;zip;} rm -rf {wet.spot;} {sleep;} finger: permission denied

02-12-2003, 02:31 PM	#2
bigben2k Responsible for 2% of all the posts here. Join Date: May 2002 Location: Texas, U.S.A. Posts: 8,302	Loctite also has a division that makes thermal compounds... maybe they should get their heads together! __________________ WBTA (Water Block Testing Alliance) Nordic Hardware WC 101

02-12-2003, 03:18 PM	#4
Kevin Slacking more than your weird uncle Join Date: Nov 2000 Location: San Diego, CA (UCSD) / Los Angeles, CA (home) Posts: 1,605	It really doesn't matter that much. If you apply the thermal comound correctly, there's a very small difference going from generic goop to arctic silver. All the other new goops are around the same range as arctic silver. Because so much of heat transfer depends on how it is applied, small variances each time can usually account for the temp differences. The bottom line is that all thermal goop does is fill the microscopic imperfections in a heatsink base / CPU core to make them sit flat. If you had two mathematically flat plane pieces of metal put together, you wouldn't need goop as there would already be perfect heat transfer. I guess what i'm getting at is that after shipping, is it really worth paying so much for something like thermal paste? Save that money and get a bettter heatsink / waterblock... __________________ I used to throw hot coffee all over the ass of the horse there, then whip him while he was kickin' at me. Those f***in things are crazy.

02-12-2003, 06:19 PM	#5
airspirit Been /.'d... have you? Join Date: Jul 2002 Location: Moscow, ID Posts: 1,986	If you can get some of this for $4 at the hardware store, then use the $15 you're saving from the online order on something else. I guess the point was to demonstrate a cheap alternative that works very well. Further, if it is all in the application, and this is easier to apply, wouldn't it be helpful for those out there that are goop-retarded? __________________ #!/bin/sh {who;} {last;} {pause;} {grep;} {touch;} {unzip;} mount /dev/girl -t {wet;} {fsck;} {fsck;} {fsck;} {fsck;} echo yes yes yes {yes;} umount {/dev/girl;zip;} rm -rf {wet.spot;} {sleep;} finger: permission denied

02-12-2003, 08:05 PM	#6
jaydee Put up or Shut Up Join Date: Dec 2001 Location: Spokane WA Posts: 6,506	Yeah, if this stuff works and works permenatly then why not. I just don't think 5C gain is accurate thats all. I just dropped $9.99 for two syringes of ComUSA AS knockoff. It is actually great stuff!. Already attached about 25 WB/HS's with less than a 1/4 a tube (and the tubes are tiny). I guess I have a year or two supply. So I will not need bother testing this stuff. Can't see why the stuff is so hard to apply right though. Pretty basic.

02-12-2003, 08:43 PM	#7
Arcturius Cooling Savant Join Date: Aug 2001 Location: Chippewa Falls, Wisconsin Posts: 294	I tried some Loctite thermal epoxy on a K6-2 about a year and a half ago...it worked fairly well, but not quite as good as the original AS in my test. I wish I could remember the part number; I'm pretty confident it was good stuff, since it was a leftover from when Crays were manufactured here in Chippewa. Anyway, as Kevin alluded to, the application can make all the difference. The particular epoxy I used was 2-part epoxy, and the directions called for the hardening agent to be brushed over one surface (the stuff was like water), while the base was to be spread on the other surface. That part started out very thick (think cold peanut butter), so I really couldn't spread it out properly. Temperatures were better than the original epoxy AMD used to attach the sink originally (retail unit) but nothing to write home about. When I took the HSF back off, the epoxy covered the entire heatspreader with a comparatively thick film, which came off easily with a razor blade. I would say it was about the thickness of 2-3 sheets of tissue paper. I suspect it would have performed better, if I had been able to make a thinner application, like new cores allow, as opposed to the K6-2's heatspreader.

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