Thermal Grizzly Presents PhaseSheet PTM Thermal Pad

[Nomad76]

With the PhaseSheet PTM, Thermal Grizzly Holding GmbH presents an electrically non-conductive thermal pad based on a phase change material (PCM). With PhaseSheet PTM, Thermal Grizzly closes the gap between traditional thermal paste and thermal pads based on graphene or carbon thermal pads. This means that the respective advantages in terms of application and thermal conductivity can be combined in one product.

PhaseSheet PTM is a thermal pad that has been optimized for applications where maintenance cycles are subject to long intervals. It is more durable than traditional thermal conductive pastes, but not as durable as KryoSheet, for example, which is virtually maintenance-free. The maximum thermal conductivity of PhaseSheet PTM develops and stabilizes after around ten thermal cycles above 60 degrees Celsius.





Compared to traditional thermal paste, PhaseSheet PTM retains a very low viscosity in its liquid state and contracts again when it changes to a solid, so that the so-called "pump-out" effect is only very slight. With the pump-out effect, the thermal paste is pressed out over time, for example between the heat spreader and the base plate of the CPU cooler.

Applications for the PhaseSheet PTM include replacing the thermal paste on older graphics cards or converting to water cooling. Notebooks also benefit greatly from PhaseSheet PTM due to their cooler design and the thermal pad can also be used between processors and CPU coolers.

The advantages of PhaseSheet PTM at a glance:

• Outstanding thermal conductivity
• Consistently high performance
• Very long service life
• Versatile in application
• Not electrically conductive
• Easy to use

Thermal Grizzly PhaseSheet PTM have a retail price of $10.59.

View at TechPowerUp Main Site | Source

 

[Dr. Dro]

Definitely cheaper than PTM7950, that's for sure. Hope it works just as well

 

[Vayra86]

PTM hype has now officially reached le gamur. I cant wait for all the GPUs repasted into oblivion

 

[FreedomEclipse]

PTM hype has now officially reached le gamur. I cant wait for all the GPUs repasted into oblivion

There is a rumour that Lenovo uses PTM on their more modern gaming laptops by default.

 

[bonehead123]

There is a rumour that Lenovo uses PTM on their more modern gaming laptops by default.

Yea, but their's comes from the bowels of you know where, and is mfgr'd by $100/year laborers, just like most everything else they make

closes the gap between traditional thermal paste and thermal pads based on graphene

Well, I've been using graphene strips on all my Gen 4 m.2's for quite a while now nottaproblemo, so if this stuff is as good or better, then it may be worth a try, especially @$11/sheet...if it don't work, just chunk it & move on

 

[eidairaman1]

Reminds me of using Akasa Shinetsu thermal pads stacked on each other for the chipset and GPU in my Dell Inspiron 9100/XPS Gen 1 Laptop.

 

[A Computer Guy]

Definitely cheaper than PTM7950, that's for sure. Hope it works just as well

PTM7950 only $6 at ModDIY. (edit1) Oops nevermind , it depends on sheet size. (edit2) it seems their size offerings are different.

 

[Dr. Dro]

PTM7950 only $6 at ModDIY. (edit1) Oops nevermind , it depends on sheet size. (edit2) it seems their size offerings are different.

I bought it from a local distributor that I knew the product they were selling was genuine (there's a lot of knockoff PTM7950 out there), but the pad I bought is almost the size of this Thermal Grizzly and it cost me almost $30. Ouch. Granted, Brazil cost and all that, but its still very pricy - a little more than a small tube of Kryonaut Extreme

Well, I've been using graphene strips on all my Gen 4 m.2's for quite a while now nottaproblemo, so if this stuff is as good or better, then it may be worth a try, especially @$11/sheet...if it don't work, just chunk it & move on

Not saying you would, did or anything - but I guess it's worth noting to anyone lurking and getting any ideas that you should not use PTM7950 or similar phase-change material on an SSD, VRM or the sort. From the factory it may be akin to an extremely thin thermal pad, but its phase-change properties mean that once heated up, it'll melt - getting into the nooks and crannies, it's gonna make a big mess. PTM is to be used in the same applications where you use traditional paste - except that it outperforms any kind of paste-type TIM.

 

[A Computer Guy]

I bought it from a local distributor that I knew the product they were selling was genuine (there's a lot of knockoff PTM7950 out there), but the pad I bought is almost the size of this Thermal Grizzly and it cost me almost $30. Ouch. Granted, Brazil cost and all that, but its still very pricy - a little more than a small tube of Kryonaut Extreme



Not saying you would, did or anything - but I guess it's worth noting to anyone lurking and getting any ideas that you should not use PTM7950 or similar phase-change material on an SSD, VRM or the sort. From the factory it may be akin to an extremely thin thermal pad, but its phase-change properties mean that once heated up, it'll melt - getting into the nooks and crannies, it's gonna make a big mess. PTM is to be used in the same applications where you use traditional paste - except that it outperforms any kind of paste-type TIM.

Just today I was considering using PTM over here for my chipset on both sides of a copper shim.

 

[sLowEnd]

Just today I was considering using PTM over here for my chipset on both sides of a copper shim.

If your chipset isn't running too hot, I wouldn't bother with such a thing. I'd be concerned about too much mounting pressure with a pad+shim combo.

 

[Dr. Dro]

Just today I was considering using PTM over here for my chipset on both sides of a copper shim.

The chipset is a "processor", you can use PTM here just fine. The X570 is known for being toasty - its TDP is very high, so much that the first-wave models had active chipset cooling. It will definitely help.

 

[pattesatan]

I bought 3 Thermalright Heilos for AMD, used 1 for a server, and another for a laptops cpu and gpu.
And I have one still, it cost me around 20 euro for all.

 

[phanbuey]

honestly just use the kryosheet - much better.

 

[Chaitanya]

PTM7950 only $6 at ModDIY. (edit1) Oops nevermind , it depends on sheet size. (edit2) it seems their size offerings are different.

Even LTTstore seems to be offering those honeywell pads starting at $15.

honestly just use the kryosheet - much better.

Those graphene sheets are electrically conductive while these arent. So both have their applications.

 

[Frick]

PTM hype has now officially reached le gamur. I cant wait for all the GPUs repasted into oblivion

Then maybe finally they reach my part of the world without having to import them.

 

[Brotato]

The thermalright helios appears to perform as well, within the margin of error in the tomshardware paste/pad tests

Best Thermal Paste for CPUs 2024: 90 Pastes Tested and Ranked

The right thermal paste will improve performance.

www.tomshardware.com

Even cheaper and thermalright is a well regarded brand. Less sketchy than random amazon 3rd party ptm sellers

 

[R0H1T]

Just today I was considering using PTM over here for my chipset on both sides of a copper shim.

I've been using couple of 970 EVO+ in an x570 for 3(4?) years now at 60-70c load temps with no issues. Have more writes on one of them than the drive you mentioned in that thread. It's almost certainly not due to temps, but every SSD is different so who knows?

There's two temps reported on the SSD, the higher one is for controller IIRC so that's the one I'm quoting.

 

[pattesatan]

The thermalright helios appears to perform as well, with the margin of error in the tomshardware paste/pad tests

Best Thermal Paste for CPUs 2024: 90 Pastes Tested and Ranked

The right thermal paste will improve performance.

www.tomshardware.com

Even cheaper and thermalright is a well regarded brand. Less sketchy than random amazon 3rd party ptm sellers

One more thing, is that it is very easy to apply, as it has 2 very different "sides" or what I should call it, the plastic shit on both sides, so its easy to not do wrong.

 

[stimpy88]

All I care about is how this compares to other products on the market. As the press release does not even mention performance, then it can't be good.

 

[Ferrum Master]

Use this you do not want trouble, especially when doing air cooling.

I use it almost daily. Not only Lenovo, but also ASUS uses it for nearly two years already. If you think you are smarter than them, go on.

It only gets better with time, no dreaded pump out, leave it and forget it.

The only thing you have to keep in mind, it needs good mounting pressure. It leaves it suitable only for GPU and CPU... and ofc the original industrial intention LED/Laser lightening cooling.

 

[Caring1]

"Outstanding thermal conductivity"
So what rating is it? (W/mK)

 

[stimpy88]

"Outstanding thermal conductivity"
So what rating is it? (W/mK)

My point exactly. No way to compare it to anything.

 

[Caring1]

I bought 3 Thermalright Heilos for AMD, used 1 for a server, and another for a laptops cpu and gpu.
And I have one still, it cost me around 20 euro for all.

It's fairly low thermal conductivity.
Thermal Conductivity（W / m-k)：8.5 W/mk
There are thermal pastes with a higher rating.
I'd expect a thermal pad/ sheet to be around 50W/mK or higher

I've contacted Thermal Grizzly and requested info on their PTM's thermal rating as their downloaded Data sheet is useless and contains nothing that isn't stated already on their website.

 

[Ferrum Master]

My point exactly. No way to compare it to anything.

It is a different material. There is no point into comparing.

By the same judgement. Look at paste and liquid metal. Is the better thermal conductivity proportional to thermal performance of your given test setup. Well no? Obviously? So why that number matters you, like it really does tell something about the real performance? So like 5-7 times more conductivity is like 2-5C? Physical properties is the key question, a mix of those... simple physics.

 

[Lewzke]

It's fairly low thermal conductivity.
Thermal Conductivity（W / m-k)：8.5 W/mk
There are thermal pastes with a higher rating.
I'd expect a thermal pad/ sheet to be around 50W/mK or higher

I've contacted Thermal Grizzly and requested info on their PTM's thermal rating as their downloaded Data sheet is useless and contains nothing that isn't stated already on their website.

that 8.5W/mK is an average value in the market, but PTM is not about pure thermal conductivity, it is about zero pump-out effect, longetivity and low thermal resistance (if the pressure condition is met). Basically it is for bare silicon chip cooling (notebooks, GPU's and delidded CPU's). Lenovo uses for notebooks, Nvidia used for 4090, automotive industry for amps/chips, aviation for ... etc. (it is the best non conductive solution for direct die cooling, no question) I used PTM7950 several times and the only negative thing about this material is the application procedure (difficult to apply, freezer and razor involved) - so I ordered PTM7958SP (paste version - but this needs drying process)