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Chalk, Calcium Carbonate Chalk or Calcium Carbonate is used as a color changer or color modifier to be added to the dye-bath or mordant bath. Chalk will "harden" your water. Chalk is commonly added to a madder dye-bath to create a deeper red color Chalk is used to deepen the color of Weld It is also used to fix an aluminum acetate mordant or a ferrous mordant. It is an item every dyer should have on hand to modify their colors Instructions for use included! Be sure to check out our Natural Dyes
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🇺🇸 Ship from USA · On Agora since 2026
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