Newclay H2 hardener 225g

Use Newclay Hardener to speed up the drying and improve the durability of Newclay or Claydium modelling clays.

Hardener H2 is supplied as a powder, which is mixed directly with your Newclay or Claydium by kneading to provide all-through additional hardness and strength to the finished article. Between 1% and 5% of H2™ can be used.

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