Guest Posted May 11, 2017 Report Share Posted May 11, 2017 Are Alumina Hydrate, Alumina Reactive & Aluminum hydroxide the same thing? If not which is the one used as part of kilnwash? Link to comment Share on other sites More sharing options...
Joseph Fireborn Posted May 12, 2017 Report Share Posted May 12, 2017 I have no idea about the other two or if they are the same thing, but I use Alumina Hydrate for my kiln wash. I use Neil's recipe. Works amazing. Link to comment Share on other sites More sharing options...
neilestrick Posted May 12, 2017 Report Share Posted May 12, 2017 Alumina hydrate is what we usually use in kiln wash. Link to comment Share on other sites More sharing options...
Guest Posted May 12, 2017 Report Share Posted May 12, 2017 Almost Tom I was making some lidded jars and while none of the lids stuck I had to pop one of them off with a gentle pry. I was planning on adding some alumina to some of the wax resist I've been using. I figured while I'm at it I would buy some to mix up some kiln wash. Lately I've been purchasing dry materials from one of two places, one of them being US Pigments where I couldn't find Alumina Hydrate. So I went to the other supplier and I read this on their site. Alumina Hydrate is a source of alumina in glazes. It is more correctly referred to as Aluminum hydroxide, Al(OH)3, but in studios and labs you will frequently hear it called alumina hydrate. It is a fine granular white powder, and because it is hydrated, it remains in suspension in glazes. Small amounts decrease fluidity of glazes. In certain pink glazes, a small amount of alumina hydrate can enhance the color outcome. I went back to US pigment (they were half the price) and did a search for alumina and found the other two I listed in my first post. I figured I'd ask here first before making a purchase. Link to comment Share on other sites More sharing options...
Min Posted May 12, 2017 Report Share Posted May 12, 2017 This one from US Pigments. "I was making some lidded jars and while none of the lids stuck I had to pop one of them off with a gentle pry." Ummm, nooooooo, don't pry it off, you can easily chip out part of the rim. Tap with a piece of wood on the side of the pot near the rim. If that doesn't work then run the lid under the hot tap and try again, if that doesn't do it then freeze the pot then try, if it still doesn't unstick then run the frozen pot under the hot tap and tap. Link to comment Share on other sites More sharing options...
Guest Posted May 12, 2017 Report Share Posted May 12, 2017 Thanks Min, I must have spelled it wrong because I couldn't find it before. Link to comment Share on other sites More sharing options...
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