We are experiencing a problem with a soldermask on a a PCB during wave soldering. The mask tends to degrade during wave soldering and remove after cleaning. This defect is only seen over thin copper traces (especially around vias) and not over the bare PCB. Can anyone tell me what is the typical temperatures a solder mask can withstand during the wave soldering process (e.g. preheats, max. temp and time etc.) Also is anyone else having this problem or can the flux or the cleaning process be causing this problem. Thanks in advance Martin Dooner AMT Ireland University of Limerick Plassey Limerick [log in to unmask] *************************************************************************** * 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. * ***************************************************************************