How To Get A Blue Green Patina On Copper Roof

Link to product info on amazon with a bristle brush and a spray bottle protect your hands.

How to get a blue green patina on copper roof. Acid washing the copper will make the green patina happen. If you want your roof to look 100 years old overnight just clean it with wright s copper cream affil. It s even possible to choose the color of a coppers patina through chemical treatment. There is however a major caveat to that unnatural choice.

This process will take several months or years depending on the atmospheric conditions in your area. Copper roofing is bright pink to begin with and in time it can gain a brownish color and then a nice blue green patina. It may take many years for the green patina to occur. After rinsing soak the copper in a 1 to 1 ratio of white vinegar and salt in a small bowl for half an hour.

Bleach sprayed on brass will give you a green patina i haven t tried it on copper. Remove oxidation from copper with a paste made of white vinegar salt and flour. The patina will appear only when the solution dries. Let the solution air dry and then repeat until the patina appears.

Both happen when oxygen in the air interacts with the metal atoms in the presence of water. For instance a simple salt water bath will start the natural tarnishing to start. Exposure to air can cause your copper to oxidize and tarnish with a blue green patina. This is done by swabbing the surface with a cold 5 10 solution of sulfuric acid.

This will make your roof a nice patina green in hours. Prep to remove oxidation by verifying the metal item is really copper and checking for the presence of lacquer. Copper roofing and gutters are slow to patina here in the desert with our dry hot climate. When roof is dry and clean apply straight muriatic acid affil.

A little baking soda rubbed into the copper along the grain helps scrub away microscopic particles. The environment will affect the color and the rate at which the copper changes colors. That being said it is still possible to use chemical treatments to advance this copper roof patina process. 3 tablespoons white vinegar 5 45 ml 1 teaspoon table salt 5 ml 2 stirred very well until the salt dissolved completely.

The patina is due to the process of oxidation and the sulfur particles in the atmosphere. Achieving a quality patina in our desert climate. Many common cleaners leave this patina untouched. The wet copper is placed on a towel to air dry.

Copper roofs which have weathered for six months or more should have the oxide film removed before the coloring operations start. Link to rockler and rub gently. The copper dioxide then reacts with more oxygen to form copper oxide equation 2. The formation of patina on copper is similar to the formation of rust on iron.

Oxide film on the copper will cause poor adherence of the patina. Copper reacts with oxygen that is in the air resulting in copper dioxide equation 1. Link to product info on amazon then take 0000 steel wool affil.