grumpykidstudio

We use a commercial glaze https://g9r3e8w7.rocketcdn.me/wp-content/uploads/msds/glaze/600T_Series_Glazes/601T2012.pdf not sure if that’s the problem… thank u for your help!!!!

it is the worst!!! we use https://www.sial-canada.com/en/sial-3/stoneware-bsgres for the slip.

hi! the glaze is the same on the exterior and interior... it seems like the case only with our slip cast mugs but not wheel thrown ones...

oh wow....that would be good to know! we have no idea what is in the clay but we bought it from https://www.sial-canada.com/en/sial-3/stoneware-bsgres sadly we just bought 50 boxes more before this happened... guess we will just need to test all the mugs with hot water first now!

I think it looks shiny because there was water in the mug. And yes! we fire it at cone 6 and it's meant for cone 6

The slip is stoneware slip (https://www.sial-canada.com/en/sial-3/stoneware-bsgres) and glaze is a commercial glaze (https://g9r3e8w7.rocketcdn.me/wp-content/uploads/msds/glaze/600T_Series_Glazes/601T2012.pdf) the outside is glazed as well, we are unsure about the new batch becuase that customer bought this mug half a year ago.

Hi! A customer reported that a mug they purchased from us cracked with hot water… it’s a slip cast mug. Not sure what caused the problem? We also have heard *ping* sounds for a few mugs when hot water was poured in. This only happened for our slip cast mugs but not on our wheel-thrown ones (with the same glaze). Please help! best, Garbo

Ohh I see! My fingers are crossed hoping that my old kiln can still handle firing up to cone 6

Thank u for the top! What do u mean the metal box, as in behind the control panel?

Thank you so much for the detailed response! The kiln I have is in excellent condition still, since the previous owner just left it in the garage for 15 years! I think I might just try to use it with it’s existing controller for now and if it breaks down on me, I will definitely talk to Tuckers. Why does it need 2 thermocouple? I only see one in the kiln...

Hey @Min! I am wondering what did you end up doing with the controller? I just got my hands on a very old Orto Controller on a Cone Art kiln and would LOVE some guidance!!