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Laguna

Magma 100 gram bag

Magma 100 gram bag

$7.49 USD
$7.49 USD
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No more hard settled glazes, no more powdery glaze coatings, no more peeling glazes, all your suspension and application problems solved.

  • A powerful non-toxic organic gum blend that solves many common glaze suspension and application problems. Far superior to CMC.

  • Suspends ANY common glaze material, including dense granular materials, indefinitely.

  • Works with or without clay, even zero clay formulations.

  • Allows unlimited layering of glaze or slip coats.

  • Hardens unfired glaze and slip coatings, especially important for sprayed glazes.

  • Does not deflocculate and cause curtaining and drips like CMC does.

  • For brush application, smoothes application and hardens the coat like CMC but allows heavier brush loading and thicker coats than CMC.

  • Almost completely burns away, leaving your fired glaze or slip unaffected.

  • Allows glaze carving and sgraffito without chipping.

  • Does not change with age (requires preservative)*.

No more hard settled glazes, no more powdery glaze coatings, no more peeling glazes, all your suspension and application problems solved.

Follow this simple chart to determine maximum usage:
Glaze or Slip type 100g 1000g 10,000g
Zero clay formulation .4g 4g 40g
Typical formulation (10% clay) .2g 2g 20g
High Clay formulation .1g 1g 10g

100g = 0.22 lbs  1000g = 2.2 lbs  10000g = 22 lbs

Start with less than maximum and increase until desired properties are attained. Adding too much MAGMA to your recipe may drastically increase the drying time of your glaze/slip.

For brushing glazes, increase recommendations by 0.1%.

As a clay plasticizer additive, try 0.05% to 0.1%.

*Recommended preservative: If you plan to store glaze mixed with water for more than one week, add Copper Carbonate (CuCO3), 0.04% of total dry batch (0.4g CuCO3 per 1000g dry glaze). The vast majority of glazes will not show any coloration from this small amount of copper but it will prevent the gum from rotting. Test before mixing a full batch.

Make a solution to add to an existing glaze (add solution by the drop to small glaze quantities):

  1. determine appropriate quantity of MAGMA
  2. add MAGMA to hot water, ~8 oz. water per 40g of MAGMA
  3. wait a few hours
  4. add MAGMA gel to your glaze or slip
  5. use an electric mixer until gel is dispersed

Or add MAGMA powder to other dry ingredients:

  1. determine appropriate quantity of MAGMA
  2. mix MAGMA powder with other dry ingredients
  3. add dry mix to normal amount of water for batch (the glaze will be thicker than you are used to)
  4. wait a few hours before sieving.

CAUTION CAUTION CAUTION CAUTION CAUTION MAGMA will dramatically thicken any glaze it is added to. Thinning the glaze to a “normal” consistency will cause very thin glaze coats. Glazes containing MAGMA will have more viscosity than typical glazes. MAGMA glazes also take more time to “dry” (the water moves into the bisque slower) after dipping or spraying. If high viscosity glazes will not work for you, and/or slow setting or drying glazes will not work for you, you should not use MAGMA. CAUTION CAUTION CAUTION CAUTION CAUTION

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