Alum Mordant
€2,95
Alum Mordant (Aluminium Potassium Sulfate)
Alum is the most popular mordant for wool, silk, and other fibers. It helps to make chemical bonds with dyes and improves wash- and lightfastness.
Use 10-20% weight of fiber.
This listing is for 100 grams of fine alum.
Find more natural dyes and undyed yarn here
Or in our Etsy shop
In stock
