Most "clear" soldermasks are slightly cloudy or not crystal clear. It is due to the fillers etc. Although with out seeing the board I do not know if it is less or more hazy then "normal." The line of ending up "crystal clear after mass soldering" is most likely not true. If anything soldermasks in general become more cloudy after assembly because of interactions with flux. But if Dynachem believes this ask them to prove it to you! I would love to see the results. Good Luck ______________________________ Reply Separator _________________________________ Subject: FAB: Clear LPISM Author: [log in to unmask] at corp Date: 1/23/97 4:06 PM When using Epic LPI soldermask, clear color, our finished bare boards have a slight "haze" left in the finish. We've been told by Dynachem and some of our customers that this is normal and usually ends up crystal clear after mass soldering. Other customers of ours query the "cloudiness" or "haze" in the finish. Any help substantiating the normality or abnormality of this would be much appreciated. Thanks....John Gordon LANmark Circuits, Inc (916)272-7280 *************************************************************************** * 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] * *************************************************************************** *************************************************************************** * 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] * ***************************************************************************