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Alum

(Aluminum Sulfate)

 4.68 ( 25 review )
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Stock# Product Details Quantity Dharma Price
#AL1
  Alum - 1 lb. (about 1 3/4 cups)
$3.49
#AL5
  Alum - 5 lbs. (about 9 cups)
$11.89
#AL25
  Alum - 25 lbs. (about 45 cups)
$53.95
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Product Description

Used as a mordant in natural dyeing and for preparing fabrics for marbling. Available in 1, 5, and 25 lb. sizes.

Use 1.75 tsp per lb. of fiber for natural dye baths. Use 4 Tbs per gallon for preparing fabric for marbling, and 4 Tbs per quart of water for preparing paper for marbling.

Made in: UNITED STATES (USA)
Category:

Alum
Alum

GENERAL INFORMATION AND USE

Alum is used in the fabric marbling process as a pre-mordant to make marbling paints "stick", and is also used as one of the safer chemicals to pre-mordant fabric in preparation for natural dyeing.

DIRECTIONS FOR USE

Dissolve 1/4 cup (4 TBS) alum into 1 gallon of water to make a solution for fabric to be marbled. Dissolve 1/4 cup (4 TBS) alum in 1 quart of water to make a solution for paper to be marbled.

ADDITIONAL USES:

Also used in natural dyeing.

DHARMA COMMENTS:

ALERT: Be careful not to leave on the fabric too long or get hot as that combination can really damage the fabric.


PRODUCT REVIEWS
25 Reviews
 (19)
Average Customer Review
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 (4)
 (2)
 (0)
 (0)
MOST HELPFUL REVIEWS
3/23/2011
3
This product is Aluminum Sulfate (AS) wo Potassium. Most dye books including Wild Color as referred by a rep. at Dharma recommends Aluminum Potassium Sulfate (APS) also known as alum. While it's OK to use AS it is recommended that smaller amounts be used. Also colors may appear dull compared to those used with APS. To learn more go to www.earthues.comaboutmordants.html
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13 of 15 users found this review helpful.
5/10/2009
5
fast shipping- love the big bag options though i wish the manufacturer would package it in a resealable bag- thanks!
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4 of 4 users found this review helpful.
4/25/2009
5
Perfect! I appreciate the lack of lumps and jagged bits in the powder I get. Price is good & shipping quick!
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3 of 3 users found this review helpful.
9/16/2015
4
this is not grocery store alum but it works tor mordanting
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1 of 1 users found this review helpful.
1/3/2015
5
Use a couple of cups of boiling water to dissolve the alum then add cold water to complete the measure. I use it to prep fabrics for water marbling and this alum works great every time.
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1 of 1 users found this review helpful.
MOST RECENT REVIEWS
7/26/2013
5
good quality
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0 of 0 users found this review helpful.
7/9/2013
5
This product works very well for mordanting silks.
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1 of 1 users found this review helpful.
6/27/2013
5
It's nice to have this item available in bulk so I'll have some the next time our group "plays" with dyeing. I really didn't have a clue from where to buy this kind of thing either.
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0 of 0 users found this review helpful.
5/23/2013
5
glad to find this in this size package
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0 of 0 users found this review helpful.
1/16/2013
3
Nothing was mentioned about alum rotting material--though well rinsed my dyed fabrics all began to disintegrate after a week!
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0 of 1 users found this review helpful.
11/12/2012
5
It's alum. Does the job. Not much more I can say about it!
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0 of 0 users found this review helpful.
9/25/2012
5
Fabulous product
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0 of 0 users found this review helpful.
10/28/2011
4
Worked well. Strange black crumbs in the bottom of the mordanting pot.
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0 of 0 users found this review helpful.

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You can combine cotton and rayon clothing & accessories to get the greatest discounts. Your discount is figured on the total number of cotton and rayon items we ship, not how many of each type, style or size. Mix and match them to get the best discount.

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