by Rena Klingenberg.
Patinas created with ordinary household products may be harmful if ingested, inhaled, or worn against the skin.
Here’s what you need to know – before you begin a patina procedure.
Parts of the Patina
That May Be Harmful:
- The patina solution, fumes, and process.
- The final patina surface on the metal.
Do Not Patina These Items:
- Objects that may be used by children.
- Objects that could come in contact with food or beverages.
- Objects involved in inhalation (such as electronic cigarettes and their accessories).
- Patina procedures should be handled by adults only.
- Work with patinas in a well ventilated area, preferably outdoors.
- Process your patinas only in containers and utensils that will NOT be used later for food or drink.
- Wear appropriate protection – gloves, goggles, and breathing protection.
- Do not patina surfaces that will be worn directly against the skin (such as in jewelry piercings, the backs of pendants, or the inside surface of rings and bracelets).
- Keep all patina processes where they cannot be accessed by curious children or pets.
Properly Seal Items
After the Patina Process
Because the finished patina surface itself may be harmful, always seal any items that have undergone a patina procedure.
When the patina is finished and dry, seal the patina using a clear spray lacquer.
Apply at least three light coats of lacquer on every patina surface of the metal, drying each coat thoroughly before applying the next coat.
I use a clear, matte-finish, spray-on sealant called “Tree House Studio” Clear Acrylic Matte Coating, from Hobby Lobby.
Krylon also has a product that’s pretty much the same thing, and about the same price.
I have also heard of people using clear automotive enamel as a patina sealant, although I have not tried that myself.
Three Things to Know About
Sealing Patina Surfaces:
- The sealant may change the patina’s color a bit – often to a duller or browner color than the original patina.
However, my patinas have had little to no color change with the clear, matte-finish, spray-on sealant I mentioned above.
- If you don’t use some sort of sealant, your patina will naturally continue to darken or tarnish – which eventually will change or cover your original patina finish anyway.
- Unfortunately, some people’s skin reacts to sealants. So you should avoid applying patinas and sealants on surfaces that will be worn directly against the skin.
See All Patina Posts and Tutorials
Here at JMJ:
Excellent Alternatives to Patinas:
Do the above precautions make it sound like patinas are not the route you want to go?
Here are some other good ways to color metals:
- Alcohol Inks: This is easy and fun, and the colors are gorgeous. See my free tutorial here: Coloring Metal with Alcohol Inks.
- Patina Inks: These inks are made to adhere to metal. They’re easy to work with, and dry very quickly. See my free tutorial here: Techniques with Patina Inks.
- Gilders Paste: There are lots of ways to apply these beautiful colors to get the look you like. Note that with Gilders Paste your metal surface needs to be textured, distressed, sanded, or etched so the paste has something to adhere to. See my free tutorial here: How to Give Metal an Oxidized Look.