sâmbătă, 15 septembrie 2012

How to clean antique coins-Roman coin Project

DIY+HowTo+tutoriale
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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