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Old 09-22-2020, 01:18 PM
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Pete VanderLaan Pete VanderLaan is offline
The Old Gaffer
 
Join Date: Apr 2002
Location: Chocorua New Hampshire
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calcium aluminate is the binder that makes castables set. The only source I've seen for it is Missouri Refractory Company (MORCO). Hi Temp in Fenton Missouri can get it for you. I think it comes in 25 lb bags. Wisest to immediately put such materials in absolutely airtight containers. I don't know if you remember all those cat food containers we had for delicat. They keep castable, plaster and such very fresh forever.
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