400F too much for thermal paste?

Korndog · 04-03-08, 02:49 AM

Hey guys,
i guess this isn't about cpu cooling, but I need to cool down something that will usually run at 400F or around 200c. I have a bunch of different types of thermal pastes, even some diamond paste. do you guys know if any paste can withstand that much heat for a long period of time w/o separating?

=ACID RAIN= · 04-03-08, 03:34 AM

This a new one to me...lol.

Try putting several drops of each one in a pan and put it in the oven @400F. See which ones hold up.

HDCHOPPER · 04-03-08, 03:52 AM

check nasa page on shuttle tiles thiers a lot of good info ... no bs

nd4spdbh2 · 04-03-08, 11:47 AM

Quote:

Originally Posted by Korndog

Hey guys,
i guess this isn't about cpu cooling, but I need to cool down something that will usually run at 400F or around 200c. I have a bunch of different types of thermal pastes, even some diamond paste. do you guys know if any paste can withstand that much heat for a long period of time w/o separating?

might try emailing Arctic Silver and other TIM manufactures.

Ben333 · 04-03-08, 12:00 PM

There should be thermal specs on the tube of TIM or in the manual.

Diddyu · 04-03-08, 12:44 PM

Arctic Alumina
Extended temperature limits: – 40°C to >180°C

Just curious, what ARE you cooling?

Tekko · 04-03-08, 03:20 PM

I knew your GF was hot but not THAT hot...

gsrcrxsi · 04-03-08, 03:25 PM

Quote:

Originally Posted by HDCHOPPER

check nasa page on shuttle tiles thiers a lot of good info ... no bs

nasa shuttle tiles act as insulators, not conductors, and take temps in excess of 3000 degrees. not really applicable here. not to mention the ablative materials they use the protect the TILES themselves from evaporating.

+1 for what are you cooling?

Korndog · 04-04-08, 12:09 AM

i made a plastic extruder (melts polyethylene and forms it into a shape) that uses a long screw and heating element to compress/melt the plastic. Works great for a short time, but then the heat travels back into the plastic hopper bin and melts the stuff in the bin..
so i need to cool down that end. I have plenty of different types of epoxies and silicone stuff that can stand high temp. and they work great, but I need to be able to remove heat so it has to be a thermal conductor

gsrcrxsi · 04-04-08, 12:17 AM

have you tried just pointing a big fan at the hopper? or maybe thermally insulating the hopper from the heat source so that it doesnt get as hot?

Neuromancer · 04-04-08, 12:43 AM

With that much heat I think just bolting (or better yet soldering) some aluminum fins to the part you need to cool would be plenty.

If you are talking about using it between your item and the fins... okay.. .wont get to 400F. The fins will start shedding the heat long before it gets there... (as long as you have enough and any air movement at all)

Just hoping you realize that the tim itself is not going to cool anyting...

Korndog · 04-04-08, 12:47 AM

thats what i'm hoping for, but i just want to be precautions. this thing is going to run continuously, for days at a time, so insulating doesn't help. Sorry, it's not reallly in the hopper, but the prehopper stage. this is where it's hot enough to get all the plastic pellets to stick together, but not hot enough to travel down the extruder screw so it just clogs the whole thing.

04-03-08, 02:49 AM	Thread Starter #1
Korndog Member Join Date: Nov 2002 Location: California	400F too much for thermal paste? Hey guys, i guess this isn't about cpu cooling, but I need to cool down something that will usually run at 400F or around 200c. I have a bunch of different types of thermal pastes, even some diamond paste. do you guys know if any paste can withstand that much heat for a long period of time w/o separating?
	QUOTE Thanks

04-03-08, 03:34 AM	#2
=ACID RAIN= Member Join Date: May 2003 Location: Kingwood, TX	This a new one to me...lol. Try putting several drops of each one in a pan and put it in the oven @400F. See which ones hold up. __________________ MY HEAT \| Websense who? \| Windows lockdown Mine: Q6600 . IP35 Pro . 8GB RAM . Velociraptor 150 . Win7 Enterprise Wife: E6600 . GA-G31M-ES2 . 4GB RAM . Buncha drives . WinXP Pro Domain Controller: E6600 . GA-G31M-S2L . 2GB RAM . 36GB Raptor . 2 x 1.5TB WD Green . 2008 R2 HTPC: E6300 . P5B . 1GB RAM . 320GB . Win7 Enterprise Sandbox 1: Dell Optiplex GX270 SFF (new caps) . 1GB RAM . 120GB . FreeBSD 7.2 Sandbox 2: 3800+ X2. K8N Neo4 (new caps) . 1GB RAM . 4 x 400GB RAID0 . 2008 R2 (WDS, WSUS) Sandbox 3: Opteron 146 . 768MB RAM . 120GB . 2008 R2 (headless, no video, remote only) Laptop: Vostro 1700 . 4GB RAM . Win7 Enterprise
	QUOTE Thanks

04-03-08, 03:52 AM	#3
HDCHOPPER Join Date: Mar 2008	check nasa page on shuttle tiles thiers a lot of good info ... no bs __________________ Working on my I7 Asus P6T SE build feel free to donate lol
	QUOTE Thanks

04-03-08, 12:00 PM	#5
Ben333 Folding for Team 32! Join Date: Feb 2007 Location: New Hampshire	There should be thermal specs on the tube of TIM or in the manual.
	QUOTE Thanks

04-03-08, 12:44 PM	#6
Diddyu Member Join Date: Dec 2007	Arctic Alumina Extended temperature limits: – 40°C to >180°C Just curious, what ARE you cooling? __________________ Mobo: XFX 680i LT CPU: Intel Q6600 G0 @ 3.8 ghz Cooling: Apogee GT + MCW60 RAM: OCZ SLI Ready 6400 @ 1000mhz 2 x 1gb Vid: 2x EVGA 8800GTS 512 (g92) @ 812/1035/2020 Case: NZXT Lexa Black PSU: Ultra Xfinity 600W 3dMark06:18356 marks
	QUOTE Thanks

400F too much for thermal paste?

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04-03-08, 03:20 PM	#7
Tekko Member Join Date: Apr 2004 Location: Montreal, Qc	I knew your GF was hot but not THAT hot... __________________ Opteron 148 on a DFI CFX3200 OCZ 2x1Gb plat PC 4000 X1900xtx Seasonic S12-600w PSU CMStacker 810 and more sanyo denki then I need 2x74gb WD raptor 10k rpm + 200gb WD 7200 rpm 8.1Ghz Folding 24/7
	QUOTE Thanks

04-04-08, 12:09 AM	Thread Starter #9
Korndog Member Join Date: Nov 2002 Location: California	i made a plastic extruder (melts polyethylene and forms it into a shape) that uses a long screw and heating element to compress/melt the plastic. Works great for a short time, but then the heat travels back into the plastic hopper bin and melts the stuff in the bin.. so i need to cool down that end. I have plenty of different types of epoxies and silicone stuff that can stand high temp. and they work great, but I need to be able to remove heat so it has to be a thermal conductor
	QUOTE Thanks

04-04-08, 12:17 AM	#10
gsrcrxsi Member Join Date: Feb 2008	have you tried just pointing a big fan at the hopper? or maybe thermally insulating the hopper from the heat source so that it doesnt get as hot?
	QUOTE Thanks

04-04-08, 12:43 AM	#11
Neuromancer Member Join Date: Oct 2005 Location: Tau'ri	With that much heat I think just bolting (or better yet soldering) some aluminum fins to the part you need to cool would be plenty. If you are talking about using it between your item and the fins... okay.. .wont get to 400F. The fins will start shedding the heat long before it gets there... (as long as you have enough and any air movement at all) Just hoping you realize that the tim itself is not going to cool anyting...
	QUOTE Thanks

04-04-08, 12:47 AM	Thread Starter #12
Korndog Member Join Date: Nov 2002 Location: California	thats what i'm hoping for, but i just want to be precautions. this thing is going to run continuously, for days at a time, so insulating doesn't help. Sorry, it's not reallly in the hopper, but the prehopper stage. this is where it's hot enough to get all the plastic pellets to stick together, but not hot enough to travel down the extruder screw so it just clogs the whole thing.
	QUOTE Thanks

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