"DKat" wrote in message
news
Your glaze in the second firing is actually going to be melting at a lower
temperature so unless the firing was at too low a temperature for your
glazes to begin with then my answer would be no. I would not increase the
temperature. This is one of those cases where you just have to play with
it and see what works. As I remember you said that you used a really long
soak. If not, I would try soaking at top temperature but keep in mind
that the soak is going to increase your heat work (making it a higher
firing than what you would have without the soak) so you might actually
want to drop the temperature some (8 C). I would soak at least 10 minutes
but over soaking is hard on your elements.

Donna


"Bubbles_" wrote in message
...
Hi D! Thanks for the quick reply!

So far, with my glazes, a second firing has never made them worse. I see
what you mean about substances being gone. None of my glazes are runny,
though - the only thing is the beautifier, and that has caused many
craters in the past, so I don't trust it much these days. Mind you, I
think I was putting it on wayyy too thick.

Would setting top temperature a couple of degrees higher help in melting
the edges of the craters?

Marianne




"DKat" wrote in message
...
Not stupid question at all. The second firing of a glaze is not the
same as the first. Before the first firing you had one set of
chemicals. After the firing you have a glass which has undergone
chemical changes. Your Carbon, Sulfur, Nitrogen, etc. have all been
removed from the glaze. It isn't even that you have a frit because glass
is oddly a liquid in many ways.

Also the second fire may not get rid of your blisters - it may in fact
make them worse.

If you can sand the blisters down as much as possible and then coat them
with a glaze that tends to be a bit on the runny side... maybe. JMO.

Good luck and enjoy your visit!

Donna



"Bubbles_" wrote in message
...
Hi again, folks

When refiring a glaze, does it melt again at the same or similar
melting point/temperature as it did the first time around? Stupid
question, maybe, but I'm still battling those pock marks and feel
knowing for sure would be a great help.

Thanks all! Back to glazing and firing so I have enough Christmas
presents for my family back in Norway - off on Sunday to visit them!
WHEEE!

Marianne

can you sandblast the objects and recoat with the same glaze, then refire to
the same temp?