Mornin' Steve - You're right!!! But there's another way to work this thing - Most important, stay out of the cleaning system - as others have pointed out, the cleaning system will do more to damage the coating than everything else. Second most important, don't use a no clean flux, unless you can be absolutely sure that all of the material reacts to the heat of soldering (which I doubt in a small rework situation). Try the following: Desolder and remove the parts - use no additive flux; Scrub the affected area with a swab and a bit of 2-propanol to remove the coating residues; Pretin the new part, so it is as solderable as possible; Solder new part, either using no flux or with a tiny bit of RMA flux; Scrub the affected area with an acid brush and a bit of 2-propanol; Dry the board - a brief pass thru an oven at 80-100C will get rid of all of the surface moistures, etc.; Patchcoat with a spray can of Humiseal 1B73, using a window mask cut from teflon or similar sheet to limit the overspray. (This should be done rather promptly after drying, when the board has cooled.) Have a fun day guy - Kelly ################################################################ 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 ################################################################