General Category > Techniques

Potassium Nitrate and Antiquity Glass


A little goes a long way. I add about 2g into 250g of powder. Others just sprinkle it on straight or roll it in a bit. The effect is dramatic and creates smoking and bubbling on the piece. Nitrate helps in the batch melt so consider this a catalyst or flux for localized glass melting. Silver nitrate also does this a bit but is obviously gobs more expensive. Very fun...I have overdone it and seen some cracking due to incompatibility. Everything in moderation  8)


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