Tannic acid (tannin) is a common mordant used in the dyeing process for cellulose fibres such as cotton, often combined with alum and/or iron. Quercitannic acid is one of the two forms of tannic acid found in oak bark and leaves. The other form is called gallotannic acid and is found in oak galls. Tannic acid is a specific commercial form of tannin.

Online orders are sent using Australia Post during business hours Monday to Friday. Orders are usually sent 1-2 days after your order is placed or when a pre-ordered item arrives. We email shipping confirmation with tracking information when your order is dispatched.

Shipping : Australia

Shipping is calculated at checkout according to the weight of the order, and your address location. Rates are supplied by Australia Post, and/or other carriers if listed.

Most orders will have the option of:

• Australia Post Standard Shipping (estimated delivery in 3-5 days)
• Australia Post Express Shipping (estimated delivery in 2-3 days)

Kraftkolour cannot guarantee expected delivery times.

Shipping : International

We currently ship outside Australia to many countries using Australia Post’s International Express service. Rates will be automatically calculated at checkout.

Click & Collect : Thomastown

When ordering online you can choose 'Click & Collect' for order collection at our premises at 2/99 Heyington Ave, Thomastown, Victoria. We will call you confirming when your order is ready to collect.

Orders can be collected 10am 4pm Monday to Friday and we would appreciate it if you could collect your order within a week.