sâmbătă, 15 septembrie 2012

How to clean antique coins-Roman coin Project

The cleaning of an artifact is an irreversible operation once the corrosion products have been stripped, some precious information and history can be lost forever.
  1. Always leave a small area of the original corrosion products on an artifact.
  2. The methods for cleaning bronze can be:
    - electrochemical
    - electrolytic
    - mechanical
    The less invasive method is mechanical cleaning under microscope observation and the results are amazing!
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