Wild Colours - Exciting colours from Natural Dyes
Wild Colours > Natural dyes shop > Mordants & assistants
Buy Dye Mordants, Modifiers & Assistants
We sell a variety of chemicals as mordants, modifiers, fixatives and assistants for your natural dyes and natural dye extracts, including alum, aluminium acetate, cream of tartar, tannic acid, & gallnut extract.
More about mordants & chemical names here.
Sodium dithionite is no longer available - read more here.
Alum Mordant 50g
Potassium Alum 50 gram -wool, cotton, silk & paper
£2.95
Alum 250 grams
Potassium Alum 250g for wool, cotton, silk & paper - save £6.50
£8.25
Aluminium Acetate 50 gms
Aluminium Acetate 50 gram - cotton & plant fibres
£6.95
Aluminium Acetate 250g
Aluminium acetate 250 gram - save £8 - plant fibres
£26.75
Aluminium Lactate 50 gms *NEW*
Alternative to Acetate - cotton & plant fibres
£6.85
Aluminium Lactate 250g *NEW*
Alternative to Acetate - save £8 - plant fibres
£26.25
Chalk 50 grams
Calcium Carbonate 50 gram - for madder & weld
£2.75
Chalk 250 grams
Calcium Carbonate 250 gram - for madder & weld - save £6
£7.75
Cream of Tartar 50 grams
Cream of Tartar 50 gram for mordanting wool & silk
£2.95
Cream of Tartar 250g
COT 250 grams - save £6.50 - mordant wool & silk
£8.25
Gallnut Extract 20 grams
(natural Tannic Acid) - dye wool & mordant cotton
£4.65
Gallnut Extract 100 grams
Tannic Acid dye wool & mordant cotton save £5
£18.25
Iron 50 grams
Ferrous sulphate 50 gram - dye modifier & mordant
£3.05
Iron 250 grams
Ferrous sulphate 250 gram - dye modifier & mordant - save £6.50
£8.75
Myrobalan Extract 20 grams
(natural Tannic Acid) - dye wool & mordant cotton
£3.75
Myrobalan Extract 100 grams
Tannic Acid dye wool & mordant cotton - save £5
£13.75
Acacia Extract 20 grams
(natural Tannic Acid) - dye wool & mordant cotton
£3.65
Quebracho Extract 20 grams
(natural Tannic Acid) - dye wool & mordant cotton
£3.55
pH paper - 20 strips
pH paper book of 20 strips to check acidity in dyeing
£1.75
Slaked Lime 250 gm
Slaked Lime (Calcium hydroxide) 250 gm for some indigo vats
£5.25
Soda Ash 50 grams
Soda Ash 50 gram - scour cotton & dye woad & indigo
£2.85
Soda Ash 250 grams
Soda Ash 250g - scour cotton & dye woad & indigo - save £7.75
£6.50
Tannic Acid 20 grams
Tannic Acid 20 gram for mordanting cotton
£4.95
Tannic Acid 100 grams
Tannic Acid 100 gram for mordanting cotton - save £5
£19.75
Titanium Oxalate 50 gms
Titanium oxalate 50 gr - mordant for cotton and dye modifier
£4.95
Titanium Oxalate 250 gm
Titanium oxalate 250g - save £5 - mordant cotton & dye modifier
£19.75
pH paper x200
10 pH paper books of 20 strips to check acidity - save £3
£14.50
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Sodium dithionite (hydrosulphite/Hydros)
Unfortunately dithionite is out of stock and we don’t have a date for re-stocking! We apologise for the inconvenience. As an alternative, try one of our fermentation vat methods for indigo and woad dyeing! - see the new pages!
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Updated on 26 May 2022
Website & photos by Mike Roberts ©2006-21 Wild Colours natural dyes