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By blender-mixing 10 grams of CMC gum into a liter of my standard dipping glaze I can apply it to the insides and outsides of large bowls quickly and evenly. This is better than any other method I have used.
I applied this cone 10R transparent inside and out on both bisque and bone-dry ware using only a small brush. This is not a commercial brushing glaze, that would be super expensive for large pieces (I have done up to 35 lb bowls this way). This is a dipping glaze that we mix ourselves: G1947U. We add 10g CMC gum to one liter of a water-reduced version of the slurry. Blender mixing makes it possible to mix in the gum and tune water content for the best brushing experience. The gum slows down the drying speed dramatically so there is plenty of time to brush it into place (while the wheel is turning). The gum also greatly increases the cohesion, enabling pouring it without drips, even in a long thin stream. Many pieces were done like this in recent kiln loads (including application onto a leather-hard 40-inch tall vase), the evenness of coverage was the best I have ever gotten (of any technique).
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