Fellow technetters, I do have two vertical HASL machine with the same operating parameters but are producing different board appearance. One machine is producing dull solder. I tried to lower the spray pressure to produce thick solder thinking that dullness means thin solder but still produced dull and rough solder surfaces. Any help? Etgar Dimaculangan ################################################################ TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TechNet <your full name> To unsubscribe: SIGNOFF TechNet ################################################################ Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################