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Spectralite (Thiourea Dioxide) is an active reducing agent which removes the oxygen from indigo when combined with Soda Ash.
It can also be used as a stripping agent for removing some synthetic dyes, especially Procion MX, from cellulose fibres when combined with Soda Ash. Use 1 part Soda Ash to 4 parts Spectralite to make a discharge paste.
Spectralite is combined with Selectasine Indigo Discharge Medium at 8% of volume of discharge medium to activate it. Stir until all crystals have dissolved. Once activated, the discharge medium is effective for up to 18 hours.
Take care with chemicals: can cause irritation to skin, eyes and respiratory system.
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