graybeard Posted August 15, 2023 Report Share Posted August 15, 2023 Hi, thanks for any help. If I fire a cone 6 clay to cone 6 will it be waterproof or will I need to glaze it. (Small water dish for a terrarium) Stay safe Graybeard Quote Link to comment Share on other sites More sharing options...
Mark C. Posted August 15, 2023 Report Share Posted August 15, 2023 depends on the tightness of the clay body(what cone 6 clay body)-the absorbion rate? Usually clay needs a glaze unless it really a tight body. Hulk, Pres and akilpots 3 Quote Link to comment Share on other sites More sharing options...
Hulk Posted August 16, 2023 Report Share Posted August 16, 2023 yep! In my limited experience on one end, a red clay the vendor rates 6.5% absorption at cone five doesn't tolerate firing much higher my measurement indicates absorption between 4 to 5% on the other end, a white stoneware the vendor rates at 1.5% absorption at cone five tolerates overfiring better, but I just fire it to a solid five my measurement indicates absorption between .3 to just less than 1% iow, depends on the clay. However, a slightly absorbent terrarium water dish might be ok, if it doesn't mold up? Quote Link to comment Share on other sites More sharing options...
graybeard Posted August 21, 2023 Author Report Share Posted August 21, 2023 Thanks guys, much appreciated. Hulk, I've been thinking along the same lines, keeping moist spots might keep the hermit crabs happy they do like to dig. Graybeard Hulk 1 Quote Link to comment Share on other sites More sharing options...
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