NEW! Ready-made spray bottle
How to Use Rit ColorStay Dye Fixative for FABRICS
  1. For small projects, spraying the fixative directly on the fabric works best. Attach a spray trigger or pour it into a spray bottle. …
  2. Let it sit for 20 minutes before rinsing with cool water. …
  3. For larger, solidly dyed items, use the sink or bucket method.

For us Flax Weavers – I have not used this product on Flax just yet – but it may be worth a try to see if it stops the fading – I will keep you posted!

More info about RIT Dye and Mixing Charts can be found by following this link