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Alum 1 Pound

$8.75
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When marbling, use Alum to pre-treat fabric for clear transfer of designs. One cup of alum is dissolved in water along with four teaspoons of Calgon, to create a solution for submerging the fabric. Wring out the fabric without rinsing and allow to air dry before marbling.

  • Also used as a mordant with some natural dyes
  • Not suitable for children
  • 5 lb.
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