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glue used by Intel to stick the IHS on, or equivalently strong (not black silicone)

post #1 of 5
Thread Starter 

Does anyone know what is the black rubbery glue that Intel uses to stick the IHS onto the pcb?

 

It's not black silicone sealant that some people recommend. I've already tried it and it's way too flexible, extremely elastic and not strong as a glue at all. After curing, I can easily slide the IHS sideways by pushing it with my finger (and I don't have to be firm). It's great for oven doors or stuff like that, but not for glueing an IHS.

 

The one used by Intel, even though it's rubbery, is much harder (less flexible) and much stronger as a glue (you need serious effort to cut it, or use a hammer+vice). As you know, you can't push the IHS sideways with your finger. I've delid'ed more than five i7 3770K and I know how it looks and feels. It's nothing like the super-flexible black silicone sealant.

 

Apart from the one used by Intel, does anyone know an equivalent that has similar properties?

 

Cheers.

post #2 of 5
I swear it's this stuff....

...but I have nothing to base that on but my own opinion....
post #3 of 5
http://www.permatex.com/products/our-brands/the-right-stuff

you can put an oil pan on an engine with this stuff, let it sit 24 hours pull the screws out, and hang off it thumb.gif

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Gaming Rig
(17 items)
 
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CPUMotherboardGraphicsGraphics
Core i7 4790K ASUS Z97-WS Gigabyte GeForce GTX 980 Gigabyte GeForce GTX 980 
RAMHard DriveHard DriveCooling
16 Gb's Mushkin DDR3 @ 1600 MHz Crucial M500 SSD 240gb 4 Seagate Cheetah 15.7 15k rpm 300Gb Drives in... Coolit ECO C240 
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post #4 of 5
Thread Starter 

Thanks a lot guys. For some reason I avoided the gasket makers thinking it's similar stuff to the black silicone (searching was always bringing up both).

 

Will going to try it out!
 

post #5 of 5
Thread Starter 
I couldn't find the Permatex "The Right Stuff" in the UK at all but I did find the Permatex Black Gasket Maker, purchased it and tried it on a re-lid experiment on a 3770K.

I can confirm that is also more elastic than than one used by Intel, but it's much harder and firm than the Black Silicon I used before. The result with this one was that I was not able to see any visible slide when pushing the IHS sideways, so I concluded that it's sufficiently good for the job. Takes about 12-24 to cure completely.

Thanks again for the suggestions!

Cheers

p.s. I used a hard clamp to keep the IHS and pcb together while curing (don't forget to place a rubber piece or several layers of soft tissues underneath the pcb if you use a clamp, otherwise the capacitors on the back may snap).
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