The easiest way to Tie Dye! The Charcoal Tie Dye comes pre-mixed and ready to use. No mixing with salts, soda ash, or hot water. Simply shake well and spray! Charcoal fabric dye is water based, non-toxic, and extremely easy to clean up. Colors remain bright and vibrant after repeated washings. Works well with stencils. The Charcoal spray dye contains 2 fluid ounces and dyes 2 to 3 shirts depending on the Tie Dye method used. Once the project is complete, let air dry completely and heat set the color by ironing with a clothes iron. Great fabric dye for t-shirts, sweatshirts, shoes, pants, pillowcases, sheets, blankets, and a variety of home decor projects! Assembled in the USA. Conforms to ASTM D4236.