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I know this is the brand everyone uses and I have no clue what it's used for in cooking, I think as a preservative. I bought this product for watchmaking, a winding stem from a watch broke off below the Crowns threads. With no way to get a replacement crown I looked online and it said alot of alum powder in water heated in a stainless steel or glass vessel. Remove the rubber o ring from the crown and put the crown in, the stem is made out of low carbon steel while the crown is made of 316L marine grade stainless steel. The way it broke meant their was no way I could physically remove it without destroying the crown and I could not get a replacement. I put the crown in the heated mixture of alum and water and after a while it dissolved the stub of the broken stem quite quickly. I then cleaned up the crown, put the o ring back in, got a new stem then sized it up cut it to length and a perfect repair, good as new. Great product that will last many years and looks like it has many uses. The product came very fast in the post and was less than £2 It came with good packaging and no damage. If you want this product buy it from this vendor its great quality and will arrive fast and is the best value for money. A++++ EbayerRead full review
Verified purchase: Yes | Condition: New
First of all, I wanted to use this powder for a purpose for which it wasn't advertised. I cannot give it 5 stars because I cannot say if it's good for personal hygiene (or for baking cakes). And I cannot give it 1 star just because it didn't work for my purpose. Hence the 3 stars. If you are looking at this powder to dissolve steel/iron, then look elsewhere. I tried it and it doesn't work. I am not sure why. Perhaps it is not real aluminium potassium sulphate, but only aluminium sulphate. Or perhaps the stoichiometry is not the right one. Who knows? I suggest you try aluminium "ammonium" sulphate instead. If you'd use this product for something else, then it may not disappoint you.
Verified purchase: Yes | Condition: New
I used this with great success on aquarium plants. I wanted to ensure that no parasitic worms or snails were left to re introduce to my tanks. I used 3 tablespoons per gallon/4.5 litres of water and left to soak overnight. I have not seen the little blighters since.
Verified purchase: Yes | Condition: New
First time I have ever used this powder. Excellent quality, instructions very easy to follow and perfect end results. I will have no hesitation in using it again.
Verified purchase: Yes | Condition: New
I bought this for animal skin curing and up to now appears to be doing the job , though it will be another month before I see if the hide stands up to use . Delivery was good and postage
Verified purchase: Yes | Condition: New
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