Check the listing for details. Jacquard iDye Poly .49 Oz - Blue. Condition: New. Listed at 12.05 USD. 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.