JohnP Posted October 4, 2014 Report Share Posted October 4, 2014 I have a five gallon bucket of zinc oxide that has clumped up to various size hard lumps that I need to get back down to size. I assume this is from being stored for a long time and moisture has gotten to it. I dont own a ball mill but have seen various diy models or if I fire in bisqe bowl would that break it down. Thank you Jp Link to comment Share on other sites More sharing options...
Marcia Selsor Posted October 4, 2014 Report Share Posted October 4, 2014 Try calcining it. Fire up to 1000 F or more...even to a low bisque, and it should lose the lumps easily. Marcia Link to comment Share on other sites More sharing options...
JohnP Posted October 5, 2014 Author Report Share Posted October 5, 2014 Thank you will try it tomorrow. Link to comment Share on other sites More sharing options...
oldlady Posted October 5, 2014 Report Share Posted October 5, 2014 if you only need a small amount right now, drop some into a dry blender and turn it on. Link to comment Share on other sites More sharing options...
perkolator Posted October 7, 2014 Report Share Posted October 7, 2014 keep a simple mortar and pestle in your glaze equipment. never know when you'll need one. Link to comment Share on other sites More sharing options...
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