New Cold Water Mordant: Aluminum Triformate


In stock



We are pleased to offer a new mordant made from mineral salts called aluminum triformate. Aluminum triformate is a room temperature mordant for all natural fibers including wool, silk, cotton, hemp and linen. It does work best on wool. It also works on a gpL (grams per Liter) calculation or a weight of fiber (WOF) percentage and we’ve used it successfully with both methods.

Each of these methods have their advantages for the artisan dyer. If you want to dip a scarf or two in mordant and then move on to dyeing without a lot of calculating, then the gpL method is good for you as there is no additional weighing, heating or handling hot mordanted items. If you are a wool dyer, the room temperature solution avoids felting or harshness through overheating. On the other hand, if you need to keep careful records and dye the same thing, then the WOF method will make it easy to reproduce your process.

For detailed instructions for use, visit the how to page here.

Aluminum triformate advantages

  • Room temperature mordanting – no additional energy necessary other than warm water when starting your mordant bucket.
  • Saves water as you re-use the mordant bath until the mordant is consumed and you can add more mordant liquid as necessary (bucket method).
  • Aluminum triformate is easy to use with minimal odor or wafting powder and dissolves easily.
  • Works well on all fibers and keeps wool fibers from being overhandled as compared to other mordant methods.
  • 200 grams (7 ounces) is reported to dye up to 5kg (11 lbs) of fibers. Results may vary due to fiber type, weight and other factors.
  • The spent mordant may be disposed of in a municipal wastewater system.



Additional information

Weight N/A
Dimensions N/A

250g, 500g


  1. Tiffany Walters (verified owner)

    I am thrilled you are stocking Aluminum Triformate! My only source has been oversees in the past. This is my preferred method to mordant my wool fibers. Thank you for making it more accessible to US dyers.

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