Soak the shirt in a soda ash mixture (1 gallon of water for 1 cup of soda ash).Then squeeze out the excess liquid and scrunch up the shirt as though you're doing a crumple dye.
1 White Cotton Shirt, Soda Ash (if the kit doesn't have soda ash)
Tie the shirt with zip ties or rubber bands.
Zip Ties or Rubber Bands
Place the shirt in the dish, but elevate it on some empty containers or a wire rack.
Cover the shirt with ice cubes.
Sprinkle the powdered dye over the ice.
Tie Dye Kit
Continue to add powdered dye in whichever colors you would like.
Let the ice melt and create the ice tie dye effect. The ice should melt within 12 hours, depending on the temperature and the amount of ice used. Even after it's melted, I recommend letting it sit for a full 24 hours.
Rinse out in the sink and then wash it in the washing machine. After running it through the to dryer, your ice tie dye shirt is ready wear!