After I posted the info from Kester, I got to wondering which range would be good for their #331 water-clean solder. They say: "The #331 would go with the rosin types at 750 0F." "When hand soldering with a rosin flux such as the Kester #44 or the #285 the recommended iron tip temperature is 750 0F. If you are soldering with a low residue no clean solder such as the #245 or #275 we recommend a tip temperature of 600-650 0F. " Colin _________________________________________________________________ MSN Premium helps eliminate e-mail viruses. Get 2 months FREE* http://join.msn.com/?pgmarket=en-ca&page=byoa/prem&xAPID=1994&DI=1034&SU=http://hotmail.com/enca&HL=Market_MSNIS_Taglines -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics