Liquid Glass Stringer

Liquid glass stringer can be made and used like the purchased "Liquid Stringer" product at a more reasonable cost.

If you want to save some money and don't mind mixing up a few ingredients then this is the way to go.

This medium can be used to draw a glass line, outline designs, or just free hand draw on your glass.

A pint of this liquid glass stringer medium is extremely inexpensive to make at home verses the purchased "Liquid Stringer" product.

Just a few ingredients and you can be making this up by the gallons.


  • Carboxyl methyl cellulose (CMC)
  • Water
  • Pot
  • Glass Powder
  • Funnel
  • Squeeze bottle

    Purchase a bag of carboxyl methyl cellulose, or CMC powder.

    CMC or Carboxymethyl cellulose is a synthetic gum arabic and is often used in some pottery glazes and sometimes as an additive in pate de verre.

    This can be purchase at most ceramic supply stores. CMC burns off during the kiln firing process.

    Place about a pint of water in a pot on the stove.

    Bring the water to a boil and add approximately five large tablespoons of CMC.

    The measurement of CMC can vary depending on the manufacturer.

    Experiment until you find the amount that works best depending on your individual product.

    Stir the mixture.

    Remove from heat and cool overnight.

    When completely cooled the mixture should be a clear gel substance.

    If the mixture is not a gel consistency, you will need to start from the beginning and adjust the amount of CMC you add to the water.

    Since CMC is made by different manufacturers, the mixture can vary.

    Add your glass powder to the gel mixture and mix.

    Again, you will need to experiment to find out how much glass powder to mix with the gel mixture.

    If the final mixture is too thick, you will have difficulty squeezing it out of the bottle.

    If the mixture is too thin, it will run all over your glass.

    Use a funnel to add this mixture to a squeeze bottle.

    Firing this mixture to a tack fuse will give you a raised line, while firing to a full fuse will give you a flattened line.

    Use this liquid glass stringer in place of purchased "Liquid Stringer" to achieve the same results for a penny of the cost.

    Please note that these instructions are written based on United States measurements. The U. S. measurement is 16 fluid ounces, which is equivalent to 473 mL. The imperial version is equivalent to 568 mL, which is 20 imperial fluid ounces. Thank you Heidi K. for bringing that to my attention.

    Return from this page to one of the following pages:

    Fused Glass Supplies
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    How to Enamel
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    Making Glass Fusing Supplies
    Technical Terms
    Liquid Glass Stringer to Glass Fusing Made Easy

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