What Is Evans Waterless Coolant Made of
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Discussion Starter · #1 ·
So I was watching Jay Leno's channel on youtube and he did a feature on "waterless coolant". Specifically Evan's Waterless Coolant.
http://www.evanscooling.com/
This stuff is made to replace water in car engines and claims to last the life of the vehicle. It is less corrosive than water so it will not corrode your parts. It is used in race cars and other high performance applications.
However, this is not what made me interested in this as a PC coolant. What got me interested was the fact it has a much much higher boiling point than water. This makes cavitation a non issue according to the manufacturer. This got me wondering if it could outperform distilled water since you can crank pump speeds higher. If a higher volume of cool liquid flows through your waterblock it might make up for its lower specific heat than water.
EDIT: I guess I should add (for those who don't know) cavitation is the creation of bubbles in the coolant at the pump impeller. It results from extreme low pressure zones in the impeller at high speeds. This causes a localized boiling effect inside the pump and causes damage to the impeller. A fluid with a higher boiling point will naturally have a decreased tendency to cavitate in a high speed pump.
Just an idea. It's expensive but you would only need 1 bottle for a PC system and you should be able to collect it and reuse it any time you need to take apart your loop. I'm curious what you guys think about this stuff. The fact it is totally non corrosive, lasts forever, and will be immune to cavitation (what often kills pumps) makes it seem pretty cool to me.
EDIT #2: I was also wondering if this would eliminate galvanization. If it did that would allow people to mix aluminum and copper parts with no worries.
Cheers
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that looks VERY interesting. i've ran fesers coolant a long time ago, now im running distilled water but lately i've been getting the itch to try something new.
i was thinking about the ice dragon nano coolant but this looks pretty nice as well.
i wish i had some extra blocks around to test it out though.
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Used it in my track car (heavily modified BMW 328Ci) and it was a waste of money. I have always had the best temps with distilled water and Redline Water Wetter.
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We have tested this stuff just watch you temps they shoot though the roof. It is not as good as normal DI by any means and adds upwards of 15c to 20c ontop of you temps.It was so shockingly bad it was removed from the system with in 1 hour. We looked at this about 1 to 2 years ago so i don't know if any thing has changed since then. All so costs a absolute fortune.
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Glad to see my automotive experience translates into the liquid cooled PC realm
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If you look at MSDS of evans coolant, it is ethylene glycol + propylene glycol + corrosion inhibitors. Nothing special at all about it. Other then the fact it will have ~1/3 heat capacity of water and 1/3 thermal conductance of water, and will have about 1/3 flow from thick viscosity of propylene glycol, and result in huge increase in core temps. Just 50% propylene glycol + water caused 8C worse core temps in skinneelabs testing. Now imagine no water at all, just all propylene gycol and eythylene glycol, so will increase core temps by significantly more than 8C.
In our pumps, there is no boiling and no cavitation, so no use at all for glycols. If you want anticorrosion, just get concentrated inhibitors without the glycol.
No intelligent reason to put 68% glycol, 30% propylene glycol, 2% inhibitors in one's car....let alone in a computer loop where the boiling/freezing temps are completely irrelevant. The only difference in a water loop you will see is MUCH higher core temps from combination of very poor thermal properties and much reduced flow from the thick viscosity of the glycol mix.
marketing hype aside, if the stuff was so great, all car manufactures would eliminate water and run same. You can buy all the ingredients for a few bucks at any chemical plant.
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Discussion Starter · #7 ·
Quote:
Originally Posted by opt33
If you look at MSDS of evans coolant, it is ethylene glycol + propylene glycol + corrosion inhibitors. Nothing special at all about it. Other then the fact it will have ~1/3 heat capacity of water and 1/3 thermal conductance of water, and will have about 1/3 flow from thick viscosity of propylene glycol, and result in huge increase in core temps. Just 50% propylene glycol + water caused 8C worse core temps in skinneelabs testing. Now imagine no water at all, just all propylene gycol and eythylene glycol, so will increase core temps by significantly more than 8C.
In our pumps, there is no boiling and no cavitation, so no use at all for glycols. If you want anticorrosion, just get concentrated inhibitors without the glycol.
No intelligent reason to put 68% glycol, 30% propylene glycol, 2% inhibitors in one's car....let alone in a computer loop where the boiling/freezing temps are completely irrelevant. The only difference in a water loop you will see is MUCH higher core temps from combination of very poor thermal properties and much reduced flow from the thick viscosity of the glycol mix.
marketing hype aside, if the stuff was so great, all car manufactures would eliminate water and run same. You can buy all the ingredients for a few bucks at any chemical plant.
In the video he claims it is non toxic and does not contain ethylene glycol. I'm not sure your link is for the same product. But it appears to be... Maybe the guy is full of crap...
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Quote:
Originally Posted by Epitope
In the video he claims it is non toxic and does not contain ethylene glycol. I'm not sure your link is for the same product. But it appears to be... Maybe the guy is full of crap...
They have 4 different ones, though all are just ordinary glycols + inhibitors. The non-toxic one is with just propylene glycol and inhibitors, but that would be the worst for cooling (1/4 thermal conductance and 1/4 sp heat of water) and very viscous and slow flow.... there are applications for all glycol cooling, but cars and computers are not among them. I gave msds for the best performing one (thermally) though it would still be unacceptable thermals for water cooling. Air cooling would give better temps than any of their all glycol fluids.
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That is why they are a joke among the autocross and racing community
What Is Evans Waterless Coolant Made of
Source: https://www.overclock.net/threads/waterless-coolant.1302628/
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