I don't buy the stuff, but my family in florida goes through quite a bit. For some reason, Rio is showing closeout on the stuff. https://www.riogrande.com/product/kerr-satin-cast-20-investment-100-lbs/702099 WTF??? Now it's out of stock.... I don't get it.
they have a shelf life. Chances are they want to get rid of it before it went bad. Look in a week or so and I bet its back in stock.
What?? A shelf life? I've used a box of something like that for years and it always seems to turn out ok??
It absorbs moisture and will set very quickly when it starts going bad. not really, and im not a fan of the satin cast.