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Inspired by the depth and elegance of a moonlit sea, Midnight Navy is a deep, classic blue designed specifically for synthetic fabrics. Whether you’re rejuvenating faded polyester apparel, upcycling accessories, or customizing synthetics like plastic, wigs, or 3D-printed pieces, this versatile liquid dye delivers rich, long-lasting colour. It works best with 35%+ synthetic blends (polyester, acrylic, acetate, nylon) and requires stovetop dyeing to maintain the high water temperature needed for vibrant results.
Next Business Day (1-2 Business Days) - £5.99. DPD Pickup Available.
You can return your order within 30 days. Start your return request here.
LEARN HOW to dye fabric with step-by-step guides, expert tips, and easy techniques. Whether you're refreshing old clothes or starting a DIY project, discover everything you need to achieve rich, lasting color with confidence.
Mix and match colours for your own bundle and save some money!
Order dispatch cut-off: Weekdays at 1pm
Polyester, Acrylic, Acetate, Nylon, Spandex, Some Plastic, Fabric Blends that Contain More Than 35% Synthetic Fibers
Get creative and create something unique with an easy dye technique, like an ice dye, dip dyed, marbled, shibori or tie-dye pattern.
With 500+ colour recipes available on Rit’s website, it is almost certain you’ll find the right colour for your needs.
Add your feature description here.If dyeing fabric with 35% or more polyester, acrylic or acetate, use Rit DyeMore Synthetic Fiber Dye instead.
Deliver vibrant colour to almost any type of fabric or fabric blend, including cotton, linen, silk, wool, rayon, ramie or nylon. This dye can even colour wood, wicker, paper and cork.
Add your feature description here.Perfect for rejuvenating faded clothing, changing the colour of apparel, shoes or accessories, coordinating home décor, hiding laundry accidents and so much more.
Saving four shirts you love with our non-toxic dye versus buying new ones reduces your CO2 emissions by 74%. CO2 is the primary gas responsible for trapping heat in the atmosphere and is the main contributor to climate change.
Really surprised as to how well the dye worked, very happy with the result
My work trousers colour is better than when they were new. I've bought more to do the rest of my uniform. Very happy.
I dyed a pale mint jumpsuit navy blue! I followed all the instructions. What a doddle!!
This was the first time i have ever used dye of any kind, so I followed the instructions to a T, mixing this blue and black dyes together. It worked really well and was much easier than I thought. Warning though: the top did shrink by about half a size in the dyeing process but I wasn't using a thermometer which might be why. It was a 100% polyester dye and it has kept the colour really well!
First time using Rit and I was able to dye thick (chainsaw covers for identification) plastic very well. The dye has permeated into plastic very well even beyond scratch depth.
Very good product. Easy to use and gives a great Dark warm blue finish.
