Alum Mordant

Mordant literally means "to bite". The mordant is the chemical link that fixes the dye to a substrate by combining with the dye pigment to form an insoluble compound.

Most natural dyes need a mordant to fix the color to the fiber and increase lightfastness. Some common examples of dyes that require a mordant are cochineal, madder, fustic, osage, and logwood.

Made from Aluminum Sulfate.

Sold by the pound

Machine wash cold with like colors. Tumble dry low or line dry. Use a warm iron as needed.

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