[Iforgot]

Hello, I was wondering how much flux, (and what kind) i should use to lower a glaze's melting point from cone 5 to cone 021? Thank you!

[Natas Setiabudhi]

Long time not see you guys in this forum. Why you should lower the glaze cone 5? If you want the melting point for cone 021, you can just use low glazes. May be for lowering that point is too extreme. More effected just 5-8 cones lower such as cone 5 to cone 03. Sorry guys, I need input too if my comment was not correct..

[Marcia Selsor]

Cone 021 is 1137 degrees F. I do not believe you can get an actual glaze to melt at the extremely low temp.
Marcia

[JBaymore]

While making "glazes" at 021 is likely just barely possible......... they would usually be called something like overglaze enamels or china paints here in the west........ to take a glaze formula that exhibits certain characteristics at cone 5 and try to move it down to cone 021 and retain those same characteristics is likely neigh on impossible.

At 021 .............. you are even below the typical china paint range... of about 017. Such a "glaze" would be very unstable and "soft".

Please post the formula or recipe that you are wanting to change. Also what is the rationalle for the drastic firing end point heat-work reduction?

best,

........................john