Sep 12

Patina kit @DF in combination with MT-Bronze & MT-Copper

General recommendations
Patination of 3D printed objects is a craft in itself. We recommend getting to know the materials and trying them first on small samples. Patina solutions will change in properties over time.

Do not prepare more of the solution than you will require for an object and do not use the same solution for more than 1 day.

The polymer in the 3D printing material covers most of the metal particles. For the best effects sanding of the surface is necessary. For this use Scotch Brite or fine sanding paper (grain 400 or more).

Safety
Most patina materials are toxic and irritating for the skin. Always protect your eyes. Some patina’s produce toxic fumes or smell.

Please use the following safety guidelines:
• Keep patina materials out of the reach of children
• Work in a well-ventilated area.
• Protect the surface you work on.
• Close the packaging after use and store it in a cool dry place with some ventilation.
• Always use safety goggles, and preferably also gloves.
• Many patina’s will corrode metal. Use glass or plastic containers to prepare patina solutions.
• Use stainless steel spoons and stirrers.
• Clean up bristles, containers, spoons etc. immediately after use.
• Clean work tops with a damp cloth.
• Never mix patina materials or prepared solutions, toxic gasses may develop. Working with different patina on a statue is possible, but only after rinsing with water and drying of the previous layer.

Turquoise patina
10% white powder & 90% table vinegar (Please use an accurate scale)
In the case that you do not have a scale available use ½ a tea spoon and a soup spoon of table vinegar

Brown / Black patina
10% yellow flakes and 90% clean tap water (Please use an accurate scale)
In the case that you do not have a scale available use ½ a tea spoon and a soup spoon of table vinegar

Dutch Filaments does not take any responsibility for any accidents that may or may not occur during the use of these chemicals. If the guidelines are followed there is little to no risk for your health.

 

1a. Prepare the object
Start preparing your 3D printed metal object by sanding it with a Scotch Brite pad or fine sanding paper (grain 400 or more). By doing this you bring the metal particles to the surface so that you can patinate the object. Without sanding you will have little success as the metal particles are encapsulated by the polymer carrier and thus will not react with the chemicals.

Take your time with sanding. The more time you take for this step the better your final patina result will be.

 

1b. Clean the object
After sanding take some water to clean off any residue and wipe down the object thoroughly with, for example, a micro fiber cloth. Take care that the object is clear of any grease, dust and particles before you move forward with step 2.

Do not worry about the apparent white haze that you will see after sanding. This is actually how you want the object to look like and it is a sign that you have a lot of exposed metal particles.

 

2. Prepare your work area
Before you move forward it’s important to be in a well-ventilated room. If you are working on a surface that you do not want to make dirty we recommend that you use a sheet of plastic (perhaps a garbage bag) for under your objects. This shou

ld make sure that you don’t leak any chemicals on the surface.
Always use safety goggles and the supplied plastic gloves.

 

3. Prepare the patina solution
Grab a plastic / paper cup and the chemical solution and mix the powder/flakes together with the required liquid. Mix thoroughly until all the powder/flakes have been dissolved in the liquid.

Due to the nature of the 2 chemicals you should be working in a well-ventilated area during this stage. The Turquoise patina solution will smell heavily of vinegar and the brown/black solution will have a heavy sulfur smell.

 

Take care that you don’t spill any of the solution on your skin and solutions shouldn’t be used for more than a few hours.

4. Applying the patina to your object
Put on a pair of plastic gloves and grab the included bristle. Now apply a thin but even layer of patina solution to the object. Take care to not use too much; The object should have an even coating but not super wet.

 

 

 

 

 

 

The black / brown patina will immediately start forming. The Turquoise patina is a bit slower to develop and you should wait about 1 hour before applying an extra layer (which is likely needed to reach the desired effect).

 

5. Finishing the patina with a wax coating (optional)
For more gloss and a more durable patina you can apply a wax layer.
Patina’s may change their colour over time, especially when exposed to the weather. A wax layer will protect the patina, reducing the speed of colour changes. Wax should be applied as a final layer; New layers of patina cannot be applied on a waxed surface.

The wax will darken the colour of the patina. To get an impression of the colour with wax (while working with the patina solutions) you can wet the surface with water.

Apply the wax with a cloth. Take care to use a different cloth per patina solution.