Dr. Ph. Martin's Bleedproof White is an opaque watercolour for covering dye colours, markers, and designer colours. It is not intended for mixing. Comes in a 1.0 oz (30 ml) glass jar. Designed for use with brushes and dip pens. 

Due to extreme cold temperatures increasing the risk of the jars breaking in shipping, we will only mail ink bottles when the forecast is above freezing for the duration of travel. If you wish to pay for overnight shipping we will do so but at your own risk and expense.