• Copper Sulphate Crystals 250g - Melbourne Etching Supplies

Copper Sulphate Crystals 250g

Copper sulphate is a much safer alternative to nitric acid when etching zinc, steel and aluminium.

For a normal line etching using zinc plates add 100g of copper sulphate crystals to 1L of water. For steel and aluminium, and to speed up the etching process for zinc, add an equal amount of table salt to your solution. For very deep etches, add 200g of copper sulphate to 1L of water. For very fine etches, reduce the amount of copper sulphate powder to 25-50g per litre.

Always wear gloves and safety equipment.

We sell our Copper Sulphate Crystals in a 250g bag.

SKU: E045.04
Regular price

Learn More About Art Materials:

  1. Khadi Papers: hand-made cotton rag fine art paper

    Khadi Papers are hand made in Karnataka, South India, from 100% cotton rag.  Cotton rags have longer fibres than linters - which are the short flu...
  2. Choosing the Perfect Fine Art Printmaking Paper:

    Choosing the perfect paper is an art to it self. Learn how to select the perfect printmaking papers, whether it is for etching & intaglio printing, screen printing, relief printing or even drawing & painting. We cover the keys to getting the right paper here.
  3. Learning About Fine Art Paintbrushes:

    The paintbrush is an essential tool in any successful painting as it is an extension of the artist’s hand. Learn all about our brushes and how to ...