
Patinas are used to color or darken solder lines on stained glass. The most common patina colors are black and copper. Using patinas brings the focus to the glass and the design of your stained glass piece and away from the solder.
Before you apply any patina, be sure all flux residue is removed. This can be done using a commercial flux remover or washing the stained glass piece with dish soap and baking soda.
Steps for Applying a Patina
• Use a brush, rag or cotton ball to dab patina onto the zinc frame. Do not use a brushing action, as this can leave streaking or patchy coverage.
• Next, apply patina to solder lines. Be sure all edges of solder lines have been covered.
• Then, turn project over and repeat the process on the second side.
• Lastly, thoroughly rinse the patina off the stained glass piece. After it is completely dry, no less than a minimum of 24hours, finishing compound can be applied.
Tips and techniques for Applying a Patina
• Safety – Always wear rubber gloves when applying a patina to protect your hands from the chemicals.
• If the patina appears spotty, use super fine steel wool to clean the area, and then reapply the patina.
• To avoid oxidation, clean and apply patina immediately after project is soldered.
While patinas will mask some inconsistencies in solder lines, others will still be noticeable and take away from the professional look of your Stained glass piece. With patience, practice and the correct tools and supplies, you can have professional solder lines.
Most patinas come in an 8 oz bottle. Avoid contaminating the liquid in the bottle by never dipping your applicator back into the bottle. Pour out a lid full of patina, and use this as your dipping tray.
You may experience different end results with the use of different brands of patinas. One common brand is Novacan. It is available in different formulas for different metals. As you experiment with different brands, you will notice that the varying brands will give you different results, and some will be more to your favor than others.
Most patinas can be removed by using steel wool, if you feel that you do not like the look, or the result of applying the patina. With experience and time, using patinas will become a natural part of making stained glass, and will enhance the look of every piece that you make.
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