• CMC20
  • Total

    £ 2.94 inc. VAT

    £ 2.45 exc. VAT

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Product information

CMC Gum Powder - Small - 20g

This Liquid Glass Medium called CMC (carboxyl methyl cellulose) comes in a powder form. Mix with powdered glass frit and water to make a pourable fusing glass mixture which you can fire in the kiln like a liquid stringer.

  • New Smaller 20g Jar

We recommend you experiment with the proportions of the CMC and water mix which will mean you can control the thickness of your liquid stringer. 

The mix is best applied using s squeezy bottle with a fine point, or a cake decorators bag. 

Mix with frit in powder form and experiment with your quantities to work on depth of colour and transparency. Try a 50:50 mix by volume to begin with. 

CMC powder burns off cleanly when fired. A tack fuse will leave a raised profile to the line, a full fuse will flatten and fully melt the glass.

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