Yes, after I use my flux I wash the part in degreaser, and if I need more solder I use a pin type torch from walmart and I use a solder that you would use on wires to fill in the small areas, or if I need a lot of solder I use a lead bar that I got from a kit out of a magazine (eastwood). Once you get enough meat in the area. use a fine 3M disk on a die grinder and then you can use a 180 or 200 sand paper, now your ready for acid copper. Remember when using the die grinder not to get the part hot or you will have to start all over again.
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