Salt and vinegar pot boiler

gczop
Full Member

Posts: 202

Salt and vinegar pot boiler Nov 25, 2015 10:10:54 GMT -6

Quote

Tried the DIY salt and vinegar copper cleaner on this with no noticeable effect on the crystals but areas of ground were whitened.

Another piece same glaze in water, salt and vinegar bath heated to boiling and allowed to cool.

tileman2 Senior Member Developing R2 porcelain clay body specifically designed for crystalline glaze. Posts: 396	Salt and vinegar pot boiler Nov 25, 2015 22:24:04 GMT -6 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by tileman2 on Nov 25, 2015 22:24:04 GMT -6 You by chance use Red CU in higher percentages; with a small addition of MNO? Tom

gczop Full Member Posts: 202	Salt and vinegar pot boiler Nov 27, 2015 21:21:58 GMT -6 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by gczop on Nov 27, 2015 21:21:58 GMT -6 Both are supposed to be 5% RED CuOx in a 413 frit base. the over crystallized piece perhaps is over 5%. No Mn.