Flints are now supplying these safe water based dyes that require no fixing. They are ideal for working on cloths and gauzes which need to remain supple. Supplied as a powder in easy to store 250g pots. To use add 2 litres of hot water per 25g. Each container holds enough dye to make approximately 20 litres depending on the final colour tone required. Our silver grey is made from one dye type so it remains grey even when heavily diluted. This dye is ideal for weathering timber.