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PCMA2305 Phase Change Metal Alloy (PCMA)

Joined
May 15, 2025
Messages
62 (1.24/day)
If anyone knows where one could purchase a sheet of PCMA2305 Phase Change Metal Alloy?

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That wont short the core?
 
I looked through a handful of their Americas vendors. Most-everyone only carried Indium's soldering products (if any public-facing products, at all).

You're best bet would likely be to reach out to the company, specifically asking/looking for a vendor/partner that sells their Thermal Interface Material products
 
I looked through a handful of their Americas vendors. Most-everyone only carried Indium's soldering products (if any public-facing products, at all).

You're best bet would likely be to reach out to the company, specifically asking/looking for a vendor/partner that sells their Thermal Interface Material products
English is not my native language.
The one here must present him self in a very decent way, unfortunately with my poor english skill I can't do this.
May someone else with fluent English could call them?

Also, I'm from Italy.
 
What do you mean?

P.S: I'm trying to get this particular PCMA2305, because I wish to get rid from Thermal Grizzly Conductonaut Liquid Metal Thermal Paste, because Conductonaut Liquid Metal sucks if compared with PCMA2305.
No worries but im worried that when it turns into a liquid it could short the card and basically kill it. It even warns that on the page labrat sent.
 
English is not my native language.
The one here must present him self in a very decent way, unfortunately with my poor english skill I can't do this.
May someone else with fluent English could call them?

Also, I'm from Italy.
Indium Corporation is a nearly century old worldwide company

No worries but im worried that when it turns into a liquid it could short the card and basically kill it. It even warns that on the page labrat sent.
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Lacquer / conformal coat around the die / package or a gasket of self-vulcanizing Silicone are fairly-common mitigations for LM TIM application.

I'd hope they are aware of this risk since, they're already using/comparing with Conductonaut.


BTW, a similar-ish product was once available,
and PPCS out of FL, USA supposedly still has a stock.

I'm not sure if there's any EU retailers that may also still have some.
Italy: https://www.drako.it/drako_catalog/advanced_search_result.php?keywords=coollaboratory

The issue w/ those 'pads' were uneven melting/ bonding.
I'm not sure if the issue was in the application, or inherent with the product, though.
 
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No worries but im worried that when it turns into a liquid it could short the card and basically kill it. It even warns that on the page labrat sent.
PCMA2305 never turns fully liquid, it turns in to quasi viscous state & compared with Liquid Metal the PCMA2305 is safer, because it doesn't react with any other metal, also with aluminum.
Meanwhile, Liquid Metal (which is basically nothing else but Galinstan, just rebranded under the name of Thermal Grizzly trademark) is another beast and it's also a pretty dangerous one.

1)Liquid Metal fully melts the aluminum;
2)Liquid Metal oxidize, so for this reason you need to reapply it every 6 months;
3)Liquid Metal amalgamates with naked copper,so If your heat sink is not nickel plated, but even if it is - it will amalgamate anyway, but more slowly.
This amalgamation is dangerous, because it grows tiny microscopic crystals which can hurt the silicon die surface underneath of your heat spreader.
 
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BTW, a similar-ish product was once available,
and PPCS out of FL, USA supposedly still has a stock.
https://www.performance-pcs.com/search?q=Coollaboratory+MetalPad
I'm not sure if there's any EU retailers that may also still have some.
Italy: https://www.drako.it/drako_catalog/advanced_search_result.php?keywords=coollaboratory
In summary:
The entire thing from Coollaboratory sucks!
Here you have some proofs:
 
Have you considered Thermal Grizzly Kryosheet™️ ?
 
Liquid Metal fully melts the aluminum;

It indeed makes a real mess of aluminum heatsinks, even if it doesn't melt the aluminum.

 
kryosheet is way better than that... try it i have it on my 4090 and 9800x3d and it outperforms stock thermal paste all day long. lasts forever.
 
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kryosheet is way better than that... try it i have it on my 4090 and 9800x3d and it outperforms stock thermal paste all day long. lasts forever.
Nice to know, but actually all my attention is only on PCMA2305, so now I can't live my life in peace without getting my hands exactly on this new super fancy toy!
:(
 
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