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Simple and safe to use
Pressing Matters speak to artists about their creative processes and passion for print
Multiple weights can be used
which I gladly share with you
Copper Sulphate Crystals special Simple and safe to useFor use as an etching solution for Aluminium or Zinc. 1kg tin. Mix 100g of Copper Sulphate with 100g of common salt in 1ltr warm water. Read our blog on how to mix this solution and also how to test the strength of your solution. RHTCSC1
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