Procion Fix (Soda Ash) 500g

500g bag of powder fix for use with Colourcraft Powder Procion Cold water dyes.
Soda Ash is also known as sodium carbonate, washing soda, or sal soda. A mild alkali that promotes the chemical reaction between Procion MX fiber reactive dye and cellulose fiber. Soda Ash is necessary to activate and "set" Procion dye.

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