Ask the question this way round: Would it be OK if I poured a quart of flux into the wave solder pot? Approximately: Solder paste is 90% metal and 10% flux, so it sounds as though it would be OK to tip it in a regular solder pot. However those numbers are by weight, solder is heavy stuff so by volume paste is about 50% flux. So if you put 10 kg of paste into a solder pot you are actually adding around a quart (US) of fluxy stuff....... Mike Fenner BSP ---------------------------------------------------------------------- Steve Gregory wrote Good day all! This might seem like a pretty dumb question, but I was wondering if there's anything wrong with putting old solder paste in yer' wave solder pot? I was feeling bored the other day, so I cleaned out our solder paste 'fridge, and I've got some jars of a bunch of different samples of no-cleans and water solubles that were played around with in the past, and I just want to get rid of them before an operator grabs one and uses it. They're all the same alloy (63/37) but there are different flux types. We're in a water soluble process now, and we don't build missile guidance systems, just class-II stuff....... *************************************************************************** * TechNet mail list is provided as a service by IPC using SmartList v3.05 * *************************************************************************** * To unsubscribe from this list at any time, send a message to: * * [log in to unmask] with <subject: unsubscribe> and no text. * *************************************************************************** * If you are having a problem with the IPC TechNet forum please contact * * Dmitriy Sklyar at 847-509-9700 ext. 311 or email at [log in to unmask] * ***************************************************************************