Coolant Recomendations
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  1. #1
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    Default Coolant Recomendations

    If you ask a salesman they'll always pimp their coolant as the best of the best so I'm hoping for an unbiased opinion.

    I'm running VMC's, not high pressure or TSC. 90% of my work are alloys with high nickel content. 50% + nickel.

    I've run, Blaser SW20, Quali Chem 251 and Blaser Vasco 6000 with some success but I've had foaming issues with all three. Some of my cycle times are 10+ hours and I think that's what triggers the foaming. I can't tell you how irritated I get with foaming...drives me bonkers.

    Lately I've been using Liquid Ice HPX. I've been somewhat happy with it because it doesn't foam but there's been a noticeable drop in tool life and it's a bit of an irritant on the skin.

    I need to try something else so if someone has a magic formula I'm all ears.

    Oh...absolutely no sulfur allowed.

    Thanks guys!

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    What kind of concentrations are you running? Ideally shouldn't you be running 10%+ for nickel alloys?

    Im going to suggest my coolant which is Synergy 735. People love it or hate it but it has worked stellar for me in aluminum, nickel alloys, and stainless steels. No issues.

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    The Blaser and QualiChem target was 7-8%. Running it any higher than that seemed to make the foaming worse. The Synergy, that's the clear stuff right? Are you using DI water?

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    This is not a coolant recommendation, but chilling your coolant will help reduce foaming.

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    Interesting...never thought of that.

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    I use the Synergy 735 too and I really like it. 2.5 years in the sump and I haven't changed it yet (grease lubed machine helps) and it is still crystal clear.

    I used to run Blaser 2000 which I really liked also except when it went rancid, it really stunk. I also ran Qualichem 251 which I liked around the same as Blaser, although the Blaser smelled nicer. Ran Valcool back in the day - that used to foam on me a lot.

    I mostly cut aluminum and plastic. Shop I do work for was using Alusol which caused a lot of staining, changed to Houghton (forget which) and now we have massive foaming issues that never happened before, machines overflowing constantly, etc.

    I've been happiest with the Synergy 735 out of all those I've tried.

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    Quote Originally Posted by Gobo View Post
    This is not a coolant recommendation, but chilling your coolant will help reduce foaming.
    That's interesting. I would expect that the colder the coolant gets, the more likely it'd be to foam. I'm not doubting you, I just had never sat down and thought about the coolant temp relative to foaming.

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    Quote Originally Posted by 52 Ford View Post
    That's interesting. I would expect that the colder the coolant gets, the more likely it'd be to foam. I'm not doubting you, I just had never sat down and thought about the coolant temp relative to foaming.
    We have several machines with 1000 psi coolant and Chip Blaster chillers. The Chip Blaster chillers are problem machines, we have had many problems with them. When they do go down and the coolant temperature climbs, we always see foaming. We see it on our mills and lathes, all high production machines.

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    I was using Blaser BC940 and would get foaming issues, more often in summer. Now using Hangstergefergers 5080 and have not had foaming issues.

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    We use Hangsterfer's S500 and we like it. Foaming is not too bad but it never gets rancid. We have used Blaser and Cimcool (back in the day). We have tried several others but we really like the Hangsterfer's S500.

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    I had a real bad foaming issue once with Blaser BC40SW. Talked with
    a Blaser rep, and he said to add calcium acetate I believe it was.
    Basically just grind up some Tums and throw 'em in.

    I never did have to try the Tum's. The coolant ended up not being the
    issue. I had been machining a ton of cast iron, and a bunch of it had
    gotten into the tank. The pump was starving and sucking in a ton of air,
    and liquid and gas makes foam.. I was still getting good coolant pressure,
    but it was sucking in just that little bit of air, and mixing it up good.


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