How to use Rit Proline.
1 Stove-top Method: This involves dyeing using hot water in a pan on the stove. This often gives the most vibrant colors (This method should be used when dyeing Synthetic fabrics or when a fabric consists of more than 35% Polyester).
2 Sink or bucket method: For general paint projects, use the sink or bucket method (dye in hot water in a bucket or sink).
For explanation of these Methods or other questions regarding dyeing, we recommend taking a look at our "How to" page of the Rit All-purpose dye. Here you can find the manual. The back of the Proline's packaging also clearly states what to do and exactly what the two methods entail.