Immediately after the soldering is all finished, I spray the entire panel with Kwik Clean and rub it into every nook and cranny with a tooth brush. Then wipe off with clean dry rags (no water used for rinsing as it can react with the cleaner and turn white). Sometimes I repeat the cleaning process if heavy flux needs extra scrubbing but not this time. It cleaned up really easily.
Immediately following cleaning and drying is polishing for both sides. Special stained glass polish is rubbed all over the panel into every nook and cranny and allowed to dry. Once dry, it is buffed off with clean dry rags and out of every nook and cranny with q-tips; (quite time consuming with this project due to the many deep curves and points.
Total time cleaning and polishing : 2 hrs.
Next: Step 11 Installation