This 14 gram packet of Crimson iDye Poly by Jacquard is a hot water dye for use on synthetic fibers. iDye comes in a dissolvable packet that can be dropped into hot water or tossed into your washer. Use on polyester, nylon, poly/cotton blends and some plastics. Each packet will dye two to three pounds of dry fabric. iDye Poly may also be used for sublimation printing techniques and to dye the polyester threads that are used to sew commercially manufactured garments. Made in the USA. iDye Poly is virtually the only dye that will color polyester. iDye Poly will color almost anything synthetic, including plastics and nylons, buttons, frisbee discs, Worbla Thibra, 3D printed objects, toys, dolls, wigs, cleats, urethane coatings and more. Comes in a dissolvable packet, so there are never any messy powders to handle simply drop the packet in a pot of water, add the fabric or objects and bring to a simmer. FABRICFIBERSURFACES; polyester, nylon, polycotton blends*, plastics and more An essential tool for cosplay artists