On Tuesday 31 May 2005 12:53 pm, Debbie scribbled: > I just use a large plastic photographic tray & conc FeCl3. Rock it gently > back & forth by hand - takes ~40 minutes @ room temp. Wear rubber gloves! > Debbie. If you add a small hair-dryer on low setting pointed to this tray, it'll speed up this process significantly, since it adds both heat and agitation -- ~15-20 mins. Lay a large plastic cover (such as a garbage bag) on your table first in case any drops fly. Cheers, -Neil. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist