Pure-Sil Biocidal coolant

[iandh]

When you are preparing the coolant.

TBH, a few minutes, but I want a much, much higher ion content in the product I sell to ensure its longevity and to account for people that may use the product in improperly cleaned loops that may dump contaminants that bond with the silver ions. The necessary level is 20-40 parts per billion, I have set a lower limit at 5 parts per million, but I usually hit 6.5-7ppm just to be sure.

It takes me about two hours per bottle to reach that concentration. It can be done much faster, but the higher the current, the larger the particles that may be kicked off instead of ions. I am trying to keep the particle size to an absolute minimum (although most of the content is still ionic), so gotta keep it low and slow.

Do you electrochemically accelerate the process?

Nope, this is another reason why it is so slow. Pure water and electricity only, no conductivity enhancers.

edit: If by that question you mean "do I apply juice", yes, a constant current DC power supply is used. Sometimes chemicals such as salt are added in tiny amounts to plating baths to increase conductivity and reduce process time, I do not do that in my process, for purity's sake.