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  1. #1

    Coolant Foaming

    2000 Haas VF0.

    Been using Trim Microsol 585xt for a few months now with no issues. The other day I took out the coolant sump and cleaned chips out of it, and topped off my coolant (running a 9% solution). Ever since this maintenance, i'm getting really bad foaming with the coolant, and it overflows at the return to the chip tray. Any ideas what I screwed up here? Scratching my head on this one

    Thanks yall

  2. #2
    Join Date
    Aug 2015
    Posts
    108

    Re: Coolant Foaming

    You can try lowering the percentage. Usually the higher the percentage the more it wants to foam but they also sell anti-foaming additives. What material do you cut?

  3. #3

    Re: Coolant Foaming

    Did you disconnect and reconnect any plumbing? Could have an intake leak.

  4. #4

    Re: Coolant Foaming

    Water hardness/softness can play a large roll on how much a coolant will foam , the softer it is the higher the chances are of having foam .
    Some brands of coolant are bad for this and as mentioned there are anti-foam additives specifically made for this sort of problem . I've used an anti-foam which is made for hot tubs and it worked fine . The problem with additives is the need to keep up on them and it's more of a bandage to the problem .

    it shows 4-10% ratio for that coolant so your on the high side . I'd drop it to 5 or 6% and see how it goes . You don't need a high concentrate unless your doing nasty work or a lot of deep tapping in steel

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