1 lb. Package of Jacquard Alum for Marbling Fabric and Paper

Jesús Manuel Amador BM-210074: Muy funcional

United States on Nov 19, 2023

marc: Trés cher pour la quantité

Canada on Oct 29, 2023

Darryl J Bilodeau: The Alum was exactly what I needed. I used this to remove a dart point that had broken just above the top of the dart barrel.

Canada on Dec 15, 2021

C. Fehr: It seemed to do what I wanted, for paper eco printing.

Canada on Aug 28, 2021

lili: Nourrir mes fleurs

France on Jun 27, 2021

P.S.C.: The alum works as expected to aid with absorbing dyes-- I make a solution that I apply with foam rollers to paper for marbling-- but the packaging for a hefty 1lb bag was a thin & brittle plastic. By the time I opened the outer Amazon packaging (a reasonable bubble envelope, unreasonably thrown against my apartment door) some of the contents was spilling out from the product packaging and into the mailing envelope. I guess it's important to note that it seemingly didn't leak during transport, but I take issue with the small mess I had to clean up at home and some loss of product volume. I managed to rescue the remaining contents by fitting the leaking bag into a standard sandwich bag. This time I double bagged it.

Canada on Jan 15, 2021

RJ: I got this to tan a deer hide. Alum is used in the tanning of animal hides to remove moisture, prevent rotting, and produce a type of leather. Traditionally treating hides with alum, instead of tannic acid, is called tawing and not tanning. The product is traditionally called parchment instead of leather.

Tanning hide into leather involves a process which permanently alters the protein structure of skin. Tanning can be performed with either vegetable or mineral methods. I prefer alum, it is easier to apply than the traditional method.. Before tanning, the skins are unhaired, degreased, desalted and soaked in water over a period of 6 hours to 4 days. I generally go for 4 days, you'll have a cleaner hide. Alum just gives a softer hide after everything is done. They're more like the blanket hides that you see in an old western.

This alum dissolves really well. It was a good price. It was really hard to find anywhere in local stores. I was glad Amazon had it so cheap and could get it to the house so fast.

STEP ONE
Skin the deer and bone out the tail. Scrape every particle of fat and flesh from the hide with a knife. Begin the tanning process or preserve it with...

United States on May 15, 2016

SBalanSBalan: I purchased the alum powder to make colorful geodes for Easter and the results were spectacular! This is a very easy and fun project to do at home and the results are very beautiful and dazzling. Just google the words "Martha Stewart" and "DIY Geodes" or type in "DIY Geodes" in YouTube for more details.

At first, I used the alum powder sold at my local grocery store (in the spices section). However I was not very happy with the results. The crystals that formed were very small and did not dazzle very much under the lights. It did not have that "wow" factor. Jacquard's alum powder produced superior results and is cheaper if you are planning on making multiple large geodes. The grocery store product was 1oz and cost me $2 vs. $8+ for 1lb (16oz) of Jacquard.

My recipe for making the geodes was as follows (Credit to YouTuber Ann Le (Anneorshine) for the Polymer Clay Idea):

Base: Make a polymer clay base by molding some Sculpy or Premo into the shape of a geode cup. You can mix different color to get a more marbelized look. Bake per package instructions. Once geode cups are cool, brush on some clear glue (I used Elmer's clear glue) and while the glue is still wet...

United States on Apr 20, 2016

GrumbleGrumble: We used this in my daughter's science fair experiment for growing crystals. ...and it did a remarkably good job at that!

Alum is one of the easier crystals to grow, especially if your child wait until the last minute. A lot of crystals take 4-6 weeks. But with alum, you can get *something* within 1-2 weeks. The key is to get a good, supersaturated solution. i.e. boil that water, spoon the alum in, reheat the water if you have to, and keep going until the water can not dissolve any more alum. You will have seed crystals forming within hours. Pick out a good one, tie to some fishing line, and then hang it in the solution. Discard anything else that may be growing. You do not want it to compete with your seed. This is a bit of a rushed approach and you will probably not get the classic octahedron that you may see on the internet. But you will still get something that your child can learn from.

Attached below is what we grew. You will notice kind of a pinkish tint to ours. We had food coloring in our solution. We naively thought we might get something like a ruby. But what we learned is that the alum tends to stay with just itself and kick the food coloring out (for the...

United States on Feb 13, 2016