Great video! When you said you spread the grog on the kiln shelf during the glaze firing, are you saying the grog won't stick to the glaze on the bottom of the plate? I'm trying to figure out how potters glaze both sides (like a cheese board) and not have stilt marks etc. I have read about the grog on the kiln shelf, also alumina hydrate + wax resist on the piece, but no one mentions if that is brushed over the glaze or not & is it better to glaze fire these flat pieces vertically or flat. There just isn't much information on how to do this. Thank you so much!
There is no way to fire a piece with glaze that touches the kiln shelf. It will stick - grog or not. The grog just lets a large flat pot expand and contract more easily during the firing and may prevent cracking. Grog does not prevent glaze from adhering to shelf. Stilts is the only way or don't glaze the bottom or trim a foot and don't glaze the foot but then you can glaze the underside. Remember don't glaze any part of the pot that touches the shelf.
![도자기 트레이 만들기 : Making a ceramic tray [ONDO STUDIO]](http://i.ytimg.com/vi/GBNfU14yyH4/mqdefault.jpg)
Great video! When you said you spread the grog on the kiln shelf during the glaze firing, are you saying the grog won't stick to the glaze on the bottom of the plate? I'm trying to figure out how potters glaze both sides (like a cheese board) and not have stilt marks etc. I have read about the grog on the kiln shelf, also alumina hydrate + wax resist on the piece, but no one mentions if that is brushed over the glaze or not & is it better to glaze fire these flat pieces vertically or flat. There just isn't much information on how to do this. Thank you so much!
There is no way to fire a piece with glaze that touches the kiln shelf. It will stick - grog or not. The grog just lets a large flat pot expand and contract more easily during the firing and may prevent cracking. Grog does not prevent glaze from adhering to shelf. Stilts is the only way or don't glaze the bottom or trim a foot and don't glaze the foot but then you can glaze the underside. Remember don't glaze any part of the pot that touches the shelf.