On 13/09/10 00:15, Tamas Rudnai wrote: > A tap water contains lots of unwanted stuff, so that is not the best to > clean any electronics. As mentioned by others isopropyl is probably the > best. I'd go with H2O to get rid of the water-soluble crap, then use isopropyl=20 to get rid of oils and help the water evaporate without leaving a residue. (Google terms: isopropyl alcohol, water, azeotrope) Ideally you use distilled or deionised water -- either should be=20 available from a car shop. Failing that, filtered tap water is fine (if=20 you've got access to a Brita filter, filtered water cooler, Fujifilm=20 FRSS system or something like that). --=20 Phil. piclist@philpem.me.uk http://www.philpem.me.uk/ --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .