metal clay, art clay, pmc, bronze clay, copper clay, steel clay
FAQ HomeFAQAsk us a QuestionSave your Favorites
Metal Clay Academy Excellence in Art Clay and Precious Metal Clay PMC
Search Advanced Search
Categories
Beginners (49)
Advanced (14)
Glass (2)
Hollow Forms (1)
Patina and Colours (8)
Stones (8)
Technical (30)
Training (2)
Firing (9)
Finishing (10)
Business (3)
Money saving tips (3)
Search
Advanced Search
FAQs
Search our FAQ to find resolutions to common issues.
Is it better to add Liver of Sulphur patina before or after tumble polishing?

The general advice is to add patina at the very end of the process. Dipping your piece in Liver of Sulphur allows you to add beautiful colours to your work. You can then re-polish the 'high' spots on your piece so they have a high shine while the deeper areas remain patina'd. Or simply leave the whole piece with the colours.

Some people have found that putting their patina'd pieces into their tumble polisher contaminates the barrel, shot and liquid. This causes any subsequent pieces tumbled to take on the patina. Other people have had no problem with this.

If you do decide to tumble your piece after adding Liver of Sulphur, it may be wise to thoroughly wash the barrel and shot and replace the liquid with fresh.


Print  Email  Save  Comments  Notify Me  Delete from Favorites 
Article ID: 10058 Article Created: 07-05-2008 11:13 AM

How well did this article answer your question? 100% 75% 50% 25% 0%

Most Recently Viewed Articles
What’s the difference between Art Clay Paste and Art Clay Overlay Paste?
Overlay Paste is designed to adhere to ceramic and glass. Art Clay Paste won’t adhere to glass and can be used as normal paste....
Can I use a song title as a texture for my metal clay?
Copyright law differs from country to country so you need to look at the copyright law for your country. ...
What items react badly with metal clay?
Aluminium reacts badly with metal clay so you should avoid using aluminium foil or work surfaces. Mary Ellin D'Agostino did some experiments with aluminium which you can read by clicking here....
What are the ingredients of Badger Balm?
Badger Balm is often recommended as a lubricant for your hands, work surfaces and tools to stop metal clay sticking. ...
Can the Art Clay Silver 650 be fired in a Hot Pot?
Yes...
What are the problems associated with quenching hot metal clay?
If you want to refire, enamel or solder on a piece of metal clay that has been quenched, you may find that moisture has got trapped in the metal. When you heat it again, especially if you heat it fast, the moisture turns to steam and may cause a blister on the surface. You need to dry the piece thoroughly if you have quenched the metal following the initial firing.It is also important to remember that you should not quench a piece which has glass or stones as part of the design. The sudden change in temperature from the firing to the cold water may cause shock and the stone or glass could be damaged or break entirely. Leave your piece to air cool, it should only take a few minutes....
How can I stop parts of my work getting polished in the tumbler?
Sometimes you might want to have parts of your work with a high shine and other parts with a different finish. This article explores ways of protecting part of your work in the tumble polisher....
Where can I buy investment in the UK?
Cooksons or Walsh...
I used a steel pin to seal my syringe and now the clay is black. What happened?
Steel reacts badly with metal clay and causes this black reaction. It is not advisable to use the clay. In future use a piece of silver wire to seal the syringe or store it with the tip standing in water....
What is PMC?
Precious Metal Clay (PMC) consists of microscopic particles of silver or gold suspended in an organic binder to create a pliable material with a consistency similar to modeling clay. PMC can be worked in the fingers and with simple tools to create a vast range of forms and surfaces unobtainable or laborious with traditional metalwork techniques. When it is heated to a high temperature, the binder burns away and the metal particles fuse to form solid metal that can be sanded, soldered, colored and polished like conventional material.    From the Mitsubishi Materials website...