How To Darken Copper Sheet

You may want to leave the brass in the oven for longer depending on the look you want.

How to darken copper sheet.

After about an hour remove the item from the plastic and apply the patina again. Bake in the oven for an additional hour. Step 1 use this method for easy relatively minor adjustments. First soak the brass in a mixture of cider vinegar and table salt in a plastic container for about an hour.

Place the object into a plastic bag to create humidity. Spray windex cleaner on fixture to break surface tension leaving it on when you apply patina solution. The yolks of hard boiled eggs can produce sulfur and related chemicals that react with the copper to change the color to a darker brown or black. Apply patina solution by spraying onto fixture preferably in the early evening on a high humidity night.

Use cotton swabs. Pour about one inch of ammonia into a pint or quart size glass jar. First and foremost clean your piece of brass or copper with either alcohol or acetone to remove any oils or dirt so that the patina is consistent throughout the piece. While this method will take longer and may not produce as dramatic results as using liver of sulfur you do not need any equipment other than hard boiled eggs and a sealed container step 2 hard boil two or more eggs.

Darken copper with brown patina clean item with a clean lint free rag dampened with clear grease cutting household cleaner. Spray the copper with window cleaner then coat the item with the aging compound. Allow to set for 1 hour then reapply solution observing where you missed applying on the first coat. Afterward remove the item from the container and place it on the cooking sheet.

In a spray bottle mix an aging compound out of vinegar household ammonia and table salt. Use two or three eggs for copper jewelry or more if you have.