Perfect for:
Polyester, Acrylic, Acetate, Nylon, Spandex, Some Plastic, Fabric Blends that Contain More Than 35% Synthetic Fibers
Rit Sapphire Blue DyeMore Dye for Synthetics
£7.99 GBP
Get all our DyeMore in the deal. Mix and match colours for your own bundle and save some money!
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Inspired by the radiant brilliance of precious sapphires, Sapphire Blue wraps your project in a rich, jewel-toned depth. Whether you’re reviving polyester clothing, transforming synthetic home décor, or customizing 3D‑printed pieces, this powerful liquid dye delivers vibrant, long-lasting colour on fabrics with 35%+ synthetic content—and even on items like plastic, wigs, and lacrosse sticks. Non-toxic and safe for sewer/septic, it’s the go-to choice for creating bold, sapphire-inspired impact.
Order dispatch cut-off: Weekdays at 1pm
Get creative and create something unique with an easy dye technique, like an ombré, dip dyed, shibori or tie-dye pattern.
With 250+ colour recipes available on Rit’s website, it is almost certain you’ll find the right colour for your needs.
If dyeing fabric with less than 35% synthetic fabric (i.e. polyester, acrylic or acetate), use Rit All-Purpose Dye instead.
Dye synthetic fabric and fabric blends, which include anything with 35% or more polyester, acrylic, acetate or nylon. Perfect for rejuvenating faded clothing, upcycling, hiding laundry accidents and so much more.
Due to the complexity of dyeing synthetic fabrics, you must use this dye in a stainless-steel pot on your stove top to maintain a high-water temperature throughout the duration of dyeing. Cannot be used in a washing machine.