Using iDye Poly on 92% polyester 8% lycra blend---do I need to add salt or vinegar??
  • Im going to use the stovetop method directions on the package but I just want to know if I should also add salt and/or vinegar or not as well.
  • No salt or vinegar needed with the fabric blend you have. The stove top method is going to give you the best color, but I would recommend keeping the temperature well below boiling as the lycra can be damaged by high temps.