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  1. #1
    Join Date
    Aug 2007
    Northern California

    Default Mix ratio and Material for Welder Coolant.

    In my other thread I discussed that I'm going to be using a water circulator with my Synchrowave 200. I'm getting my adapter tomorrow for the Weldcraft torch. That will be the Q5WGT Dinse adapter that carries gas from the machine and through the connector to the torch and also takes out the return water without going back into the machine.

    I understand that it's about $20 a gallon for Miller or Radnor (AirGas) and some of it is already pre-mixed (cut with water) It almost sounds like I could go broke filing up the tank. I read elsewhere that some folks use RV coolant but I don't know whether that's ethylene or propylene glycol. Yet others say you can use straight distilled water with some "Water Wetter". I'm going on the assumption that distilled water is similar to de-ionized water and would be equally as usable in a welding cooling unit as de-ionized water. I haven't a clue where to get de-ionized water.

    I can't seem to find anything from Miller on the topic, either. In fact, the Synchrowave 200 Manual says nothing about a water cooled torch at all. It appears that Miller leans towards the air-cooled torches on the smaller machines.

    So my question is, assuming that I use about 7 gallons of distilled or de-ionized water in my 15 gallon tank how much Miller or other brand welder coolant would I need?

    Thanks in advance.

    Last edited by Synchroman; 08-21-2007 at 08:19 PM.

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