We recommend using our tie dye products on fabrics that are 100% natural, such as cotton, rayon and silk. Our dyes are formulated to absorb into the natural fibers, which is why they hold their color so well, washing after washing.
Manmade synthetic materials such as polyester, acrylic, nylon, etc. do not absorb these dyes very well or sometimes not at all. If you want to experiment, try on a similar fabric swatch first.