Improves the wetting and increases the flow of water colour. Only add a few drops of ox gall to the mixing water .
Standard Delivery UK
For orders less than £30 the postage and packaging charge is £2.95 or for orders less than £5 is just £1.95. FREE delivery on orders over £30 (1-4 working days )
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Express Delivery UK Mainland
£6.99 (Next Day Mon - Fri)
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