Kryonaut - abrasive properties and high temp degradation

Discussion in 'Hardware Components and Aftermarket Upgrades' started by Thysanoptera, Jul 27, 2019.

  1. Thysanoptera

    Thysanoptera Notebook Consultant

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    Just a heads up in the right forum - a week ago Thermal Grizzly admitted they had a bad batch early in 2018 - Kryonaut abrasive?? , not ground good enough, with large particles left in the paste leading to scratches on heat transfer surfaces. I bought mine in March 2019 from Amazon seller "Onyx PC" (the only one that had Prime) and my laptop CPU die and heatplate look pretty bad. Thermal Grizzly doesn't record serial numbers, is unable to recall the product, so you may or may not get a tainted syringe even when buying right now.

    I wouldn't probably notice if my idle temps didn't go 20C up after three weeks following the repaste, I blamed it on the paste degradation over 80C, based on their product page saying that "Kryonaut uses a special structure, which halts the drying out process at temperatures of up to 80° Celsius." - and my 6 core GS65 with power limits removed was hanging for extended periods of time near 95C. Right now I'm not so sure, maybe they messed up more than just zinc oxide powder particle size. Even bone dry it shouldn't kick the temps from 30 to 50C under the same package power, and when I removed it it wasn't even dry at all, looked normal. But - the GPU on the same motherboard was fine (other than scratched), and since the GPU didn't really go above 70C I still think the temperature has something to do with the Kryonaut degradation.

    If you're planning to use Kryonaut test it first on some throwaway surfaces and see if it gets scratched. And keep an eye on temperatures, see if they don't degrade if you're pushing the machine hard.
     
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  2. joluke

    joluke Notebook Deity

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    Well this is alarming since I'm using kryonaut in my 1080 and 8700k. Thanks for the info
     
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  3. Sabs47

    Sabs47 Notebook Consultant

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    I just asked Gentech to put Kryonaut on my new Aero. This is very upsetting
     
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  4. NB_Neenja

    NB_Neenja Notebook Consultant

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    Wow. Bought a 1g tube of Kryonaut off eBay in August last year for my laptop. Looks like I dodged a bullet.

    Thanks for the heads up.
     
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  5. jaybee83

    jaybee83 Biotech-Doc

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    lol calm down guys. even if it is abrasive (like IC DIamond regularly is) it will not harm your hardware in any way. itll probably just be annoying to repaste more often than usual :p
     
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  6. Thysanoptera

    Thysanoptera Notebook Consultant

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    Some, including me, wait with IC Diamond application until the part involved (CPU, cooler etc) is out of warranty, close to it, or I am absolutely sure there is nothing wrong with it. I don't think sending a part for RMA that looks like it was sandblasted would result in a smooth replacement process:

    [​IMG]

    That's the OP picture from that overclockers thread after Kryonaut application.

    Secondly, pretty much every one who reported same issue also reported bad thermal performance. In my case it took some time, I noticed bad temps after 3 weeks, others immediately. And I'm not removing the motherboard from GS65 to repaste every two weeks. It has MX4 now, and I'll change it to IC DIamond when I get a chance, won't make any difference appearance wise anyway.
     
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  7. custom90gt

    custom90gt Doc Mod Super Moderator

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    Really silly that Kryonaut doesn't have a lot number or something for returns/exchanges. I've never had an issue with any of my 3 tubes of Kryonaut, but poor quality control like that makes me want to look elsewhere when this one starts turn low.
     
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  8. electrosoft

    electrosoft Tick Tock Clarice....

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    Here's a quote from a TG rep:

    "Luckily we do know how many were sold. It's was batch of about 800 pcs. Taking into account that we have a high six figure amount of syringes out per year it would not be in relation to take out everything in the market. It's basically the production of one day vs everything that we do in one year.
    As I said if you experience anything like this in the thread - contact us and we will figure out a compensation for you. Communicating with you as customers and preventing this from happening again is taking responsibility."

    A very small amount made it into the wild.

    With that being said, I do have a still bagged, sealed syringe of Kryonaut I bought from Onyx PC in July 2018 in my collection that has me going, "Hmmmm...." :p:D
     
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  9. Felix_Argyle

    Felix_Argyle Notebook Consultant

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    Ouch. At least they're being honest, unlike IC Diamond representatives who always denied the fact that some people had scratches after using their paste.

    Problem is, when you'll send your laptop for warranty and tech will look at the GPU and CPU surface - they can instantly deny any warranty due to "physical damage caused by user" even if that physical damage has not caused the failure. I was lucky enough for that to not happen but I've seen plenty examples of this from other users, from smartphones to power supplies.
     
  10. hmscott

    hmscott Notebook Nobel Laureate

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    Can you "feel it" when you rub a drop between thumb and forefinger? If it's that gritty you should be able to sample a bit from the tube before use and test for the gritty feel.
     
    Last edited: Jul 30, 2019
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