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heat sink compound

 
  #1  
Old 01-19-2019, 05:38 PM
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heat sink compound

What type heat sink compound is best for the heat sink hold an electronic ignition module on my fenderwell? 96 F250 7.5/automatic. Changing ICU.
 
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Old 01-19-2019, 05:53 PM
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Thermal paste, commonly used on computer electronics. Arctic Silver is a good one.
 
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Old 01-19-2019, 06:14 PM
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Available in syringes at stsples,office depot and Amazon.
 
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Old 01-19-2019, 06:57 PM
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Thanks... live in the country and some of those office supply places are a long way away. Bought the suggested paste from amazon. Thanks wg
 
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Old 01-19-2019, 08:34 PM
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In a pinch, dielectric grease works excellent.
 
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Old 01-20-2019, 08:03 AM
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Artic silver is what everyone uses that builds their own cree LED grow lights since each one takes a heat sink. Its the way to go.
 
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Old 01-20-2019, 12:54 PM
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Originally Posted by Tedster9 View Post
In a pinch, dielectric grease works excellent.
Well .... dielectric grease will electrically insulate the component from the firewall and won't transfer the heat.

I found this interesting : Easy alternative of thermal paste - [Solved] - CPUs
 
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Old 01-20-2019, 01:37 PM
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Originally Posted by byronbgs View Post
Well .... dielectric grease will electrically insulate the component from the firewall and won't transfer the heat.
The purpose of heatsink compound is to fill in the spaces (air) between the component and the heatsink itself, that act as an insulator. It's not there to "transfer" anything. You'll sometimes see people glob on a thick layer of compound, this actually increases the temperature of the component, because they don't know how it works, or what it's for. Dielectric grease is an excellent heatsink compound.
 
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Old 01-20-2019, 11:22 PM
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Thermal paste is called thermal paste for the hell of it.

You use it on a heat sensitive electronic component that is mounted on a large finned metal heat SINK just because... oh never mind.

Use dielectric grease in applications calling for thermal paste if you like replacing heat sensitive electronics often though some get away with it.
 
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Old 01-21-2019, 02:26 AM
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Originally Posted by Scndsin View Post

Use dielectric grease in applications calling for thermal paste if you like replacing heat sensitive electronics often though some get away with it.
I knew the cork sniffers would show up as soon as I hit enter on that. LOL!!



Testing shows there is essentially NO difference between Permatex Dielectric Tuneup Grease and Heat Sink Compound, Thermal Paste, call it what you want. This is at 30 watts dissipation. Note a thick layer of heat sink compound actually increases thermal resistance. Everybody does this for some reason. Just a thin skim is all that's required.

Source: http://www.w8ji.com/dielectric_grease_vs_conductive_grease.htm
 
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Old 01-21-2019, 04:07 AM
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Don't know who's testing that is but the corp I used work for it was a firing offense to use the wrong compound on a quarter mil machine.

The engineers were pretty strident about it.

Sniff whatever you want that makes you happy.

There's people round here that think ATF will fix anything , torque wrenches are for pussies, and all hydraulic fluid is the same.
 
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Old 01-21-2019, 07:52 AM
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Am I reading that table wrong? What the heck were they testing that was only getting into the low 60F range on its worst test, but needed thermal paste and a heat sink?

For anyone curious about substitutes for thermal grease, check out this thread. This guy tested everything from dielectric grease to American cheese.
 
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Old 01-21-2019, 09:51 AM
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The key is to use crunchy peanut butter. The creamy just don't hold up as demonstraited in that posted thread. Better yet, crunchy peanut butter with a layer of preserves on either side.
 
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Old 01-21-2019, 10:02 AM
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Originally Posted by Scndsin View Post
...the corp I used work for it was a firing offense to use the wrong compound on a quarter mil machine.
Nobody is overclocking their ignition module and even Ford supplies - Surprise! - dielectric grease for this exact purpose. Ignition modules. The exact same stuff used elsewhere, the engineers must think it's OK.

If you read the different forums on this subject it can get about as bad as the oil threads. Half the people don't understand how it works or what it's really for. They hear "Thermal Paste", so it stands to reason if a little bit is good, a whole lot is mucho better, right?

 
  #15  
Old 01-21-2019, 10:54 AM
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Look, you can keep a tube of Di G in the night stand to replace your KY if that's what floats your boat.

Where the MFG recommendation is "thermal paste", I'll use thermal paste.

You (or anybody else) can use what they want.
 

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