I do not stack pieces on top of each other when bisque firing.
I do not rub out the pin holes. This glaze does not move at all at 16 mins should I hold longer? How long?
The glaze is HF-11. Bisque temp 1945.
I use a skutt kiln 818. Bisque firing slow 12.5 hours and glaze medium speed 8.5 hours.
This is what I make- www.coldspringceramiccompany.com- for reference.
The problem is I cant seem to control when the pinholes come and when they dont. For instance, i make pie dishes some glazes will come out perfect other will be covered in pinholes, but only on the outside.