T6 is about the easiest to obtain that cuts nice, it's the architectural sheeting that cuts like wet butter.

Best coolant for aluminium is WD40, in fact that's all its good for :heehee:

Because it's expensive make your own 75% paraffin [ the UK stuff ] and 25% any hydraulic oil, or ATF, that red automatic transmission fluid.
You don't need much, those kitchen type spray bottles work well but you have to be there.

I had often thought, but never done anything about it, of using one of those Peristaltic pumps

[ame]http://en.wikipedia.org/wiki/Peristaltic_pump[/ame]

Positive displacement, no waiting 10 minutes then the alloy builds up on the cutter and just as you go to stop the machine a great big snot of muddy water hits you bang on.

With a spray head you get get a fine mist which is all you need except decent ventilation

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