About polishing the glass in the kiln
Posted: Wed Mar 13, 2013 4:45 pm
Dear friends,
I am trying to sum up all the possibilities I know for polishing glass inside the kiln. However, I miss the details of the temprature when it matures. And of course miss experience -
1. FIRE POLISHING - at what temprature does the glass [Bullseye glass] melt to fire polish? Satin finish, and / or full shine.
2. BORAX POLISHING - to what temprature to I have to go if and when I use Borax as the means for polishing? It is my understanding that Borax can also prevent devit.
3. SPRAY A - again, at what temprature does it melt? I once used spray A for polishing, and it remained white scum on the piece - never became treansparent or shiny. Can this be cured at all?
4. GLASS POWDER - recently I found out that if I sprinkle glass powder [BE 08, NOT frit], it adds shine to the piece, and works like I was capping it. Yet, I do not have to worry that much about bubble squeeze, as I would do, when capping with a sheet glass.
I did a very conservative schedule for this firing, consequently, to my surprise the powder melt at 701 C, yours 1293.8 F
I would be very very grateful for your imput, your experience
and your recomandations
many thanks in advance,
Havi
I am trying to sum up all the possibilities I know for polishing glass inside the kiln. However, I miss the details of the temprature when it matures. And of course miss experience -
1. FIRE POLISHING - at what temprature does the glass [Bullseye glass] melt to fire polish? Satin finish, and / or full shine.
2. BORAX POLISHING - to what temprature to I have to go if and when I use Borax as the means for polishing? It is my understanding that Borax can also prevent devit.
3. SPRAY A - again, at what temprature does it melt? I once used spray A for polishing, and it remained white scum on the piece - never became treansparent or shiny. Can this be cured at all?
4. GLASS POWDER - recently I found out that if I sprinkle glass powder [BE 08, NOT frit], it adds shine to the piece, and works like I was capping it. Yet, I do not have to worry that much about bubble squeeze, as I would do, when capping with a sheet glass.
I did a very conservative schedule for this firing, consequently, to my surprise the powder melt at 701 C, yours 1293.8 F
I would be very very grateful for your imput, your experience
and your recomandations
many thanks in advance,
Havi