Alum

Dharma Trading Co. Verified independent store

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Used as a mordant in natural dyeing and for preparing fabrics for marbling. Available in 1, 5, and 25 lb. sizes. For natural dyers who prefer, we also now carry Potassium Aluminum Sulfate as well as Aluminum Acetate. Use 1.75 tsp per lb. of fiber for natural dye baths. For marbling see tutorial instructions. Show more