eeb,
Sounds like a practical way of doing it.....which gets me to thinking why a fine-mist spray bottle of FeCl3 (15%) wouldn't also work for providing a rapid, uniform application.
With short application time being the goal, a fine mist of the stuff delivered with a few squirts may possibly coat it as quickly as brushing before removal with 0000 wool. Five to ten seconds dwell time at 15% strength, possibly 15-30 seconds at weaker strengths, seems to be the accepted norm here and I was pondering whether a spray application might work just as well. Just a thought. In any event, will try your foam brush technique when practicing.....and 'Thanks' for your input.
Rob
