Mordant - Ferrous Sulphate
Wingham Wool Work
£5.8
Iron Sulphate , also known as Ferrous Sulphate , is a traditional mordant and colour modifier used in natural dyeing to darken and shift colours. Often referred to as a way to “sadden” colours, it transforms bright shades into deeper greys, soft blacks and muted earthy tones. Used either during or after dyeing, iron can significantly alter the final colour, adding depth, contrast and a more aged or rustic appearance. It can also help improve lightfastness in some natural dyes, making it a valuable addition to the dyeing process. This finely milled powder dissolves easily in water, ensuring con
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