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Where to find the dark grey foam strip/tape used in older Thinkpads?

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spronkey
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Where to find the dark grey foam strip/tape used in older Thinkpads?

#1 Post by spronkey » Sat Sep 15, 2018 12:52 am

I've been refurbishing an X61, and have replaced the CPU fan. Unfortunately the foam strip used to insulate the heatsink vents from the casing is very weak.

Where can you find some of this foam tape or strip? I think that it might be a tape - single sided, but not sure.

Any ideas?

You can see the tape in this image, between the copper and the fan housing: https://image.dhgate.com/0x0s/f2-albu-g ... atsink.jpg

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Re: Where to find the dark grey foam strip/tape used in older Thinkpads?

#2 Post by RealBlackStuff » Sat Sep 15, 2018 5:03 am

Sounds like an almost impossible-to-find item, but check this out: https://www.preson.com/products/vf1300-series/
I have used Kapton tape to put such fans together, it's heat-resistant, but not 'hairy'.
And widely available.
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Re: Where to find the dark grey foam strip/tape used in older Thinkpads?

#3 Post by GrifterGuru » Sat Sep 15, 2018 2:35 pm

Looks like closed cell foam.... Ever thouh of cutting something like that from grey pipe lagging, or, even, black A/C pipe lagging??

All you need then is some double sided tape and a bit of skill with a Stanley knife (box cutter) or modelling scalpel.
X31 2672-58G, M73 10AXS, M73 10AXS i7, L412 4403-72G i5,T420 4236-9N8 i7-2630QM, T430 2349-TDG, X201 3680-C85, X220 42902
Install Mojave on X220 & T420

axur-delmeria
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Re: Where to find the dark grey foam strip/tape used in older Thinkpads?

#4 Post by axur-delmeria » Sat Sep 15, 2018 2:42 pm

GrifterGuru wrote:
Sat Sep 15, 2018 2:35 pm
Looks like closed cell foam.... Ever thouh of cutting something like that from grey pipe lagging, or, even, black A/C pipe lagging??
Can either of those survive high temperatures (up to 100c)? It's attached to the heatsink after all.
Daily driver: X220 4291-C91 i7-2620M

Backup: X220 4291-P79 i5-2520M
Toy: X60F Core Solo U1300
In pieces: two retired but working X61Ts
RIP: 760XD 9546-U9E; X61 7676-A24; and a BOE-Hydis HV121P01-100 in failed SXGA+ mod
:cry:

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Re: Where to find the dark grey foam strip/tape used in older Thinkpads?

#5 Post by GrifterGuru » Sat Sep 15, 2018 3:05 pm

A/C lagging should if it is passive rather than flame.....

I used black A/C lagging between componants (as a "soft mount/cushion") in an engine bay near the exhaust and never saw any problems. Should be ok in a laptop...
X31 2672-58G, M73 10AXS, M73 10AXS i7, L412 4403-72G i5,T420 4236-9N8 i7-2630QM, T430 2349-TDG, X201 3680-C85, X220 42902
Install Mojave on X220 & T420

axur-delmeria
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Re: Where to find the dark grey foam strip/tape used in older Thinkpads?

#6 Post by axur-delmeria » Sun Sep 16, 2018 6:50 am

GrifterGuru wrote:
Sat Sep 15, 2018 3:05 pm
A/C lagging should if it is passive rather than flame.....

I used black A/C lagging between componants (as a "soft mount/cushion") in an engine bay near the exhaust and never saw any problems. Should be ok in a laptop...
Sounds good then. Maybe there exists some kind of self-adhesive version of A/C lagging? I'm not very familiar with A/C stuff. :oops:
Daily driver: X220 4291-C91 i7-2620M

Backup: X220 4291-P79 i5-2520M
Toy: X60F Core Solo U1300
In pieces: two retired but working X61Ts
RIP: 760XD 9546-U9E; X61 7676-A24; and a BOE-Hydis HV121P01-100 in failed SXGA+ mod
:cry:

GrifterGuru
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Re: Where to find the dark grey foam strip/tape used in older Thinkpads?

#7 Post by GrifterGuru » Sun Sep 16, 2018 7:39 am

A/C Lagging is literally "high density" foam lagging. Bit like the grey stuff, but far, far denser.

As for self stick? not as far as I am aware..
X31 2672-58G, M73 10AXS, M73 10AXS i7, L412 4403-72G i5,T420 4236-9N8 i7-2630QM, T430 2349-TDG, X201 3680-C85, X220 42902
Install Mojave on X220 & T420

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