Alum (potassium aluminium sulphate)

£2.60£4.80

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Description

Our alum is aluminium potassium sulphate. It is a hiqh quality, scientific grade product with no iron contamination.

Alum is used as a mordant in natural dyeing and is our recommended mordant for protein (animal) fibres.

We recommend a ratio of 10g alum per 100g dry weight of fibres.

Alum can also be used in conjunction with tannin for an alum-tannin-alum mordant on cellulose (plant) fibres.

Additional information

Weight 135 g
Weight

125g, 250g

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