Which Fabrics Work Best With Rit Dye?
RIT works best on many natural, washable fabrics such as...
100% cotton, linen, silk, wool, ramie
Synthetics such as rayon, nylon and acetate
Fiber blends with at least 60% cotton or other dyeable fiber (Blends will tint evenly but will not achieve full color)
but there are fabrics that will not accept dye such as...
Fabrics with 50% or more polyester content
100% acrylic, fiberglass, or metallic fibers
Fabrics with rubber backing (bath mats or throw rugs)
Fabrics with special finishes such as water repellents
Fabrics with bleach damage or extensive staining
Fabrics washable only in cold water or labeled "dry clean only"