Once Glazed, Twice Fired?

Actually I have several somewhat related questions

1. I have some pieces that I used wax resist on for decoration. A
couple of them I'm not pleased with after coming out of the glost
fire. Can I glaze the unglazed parts and refire the pieces?

2. There was a question a week or so ago regarding reglazing and a
couple of the replies mentioned that it would be best to reglaze with
the same glaze. With that in mind.....There is a piece I want to try
to reglaze that has a blue glaze covered by a clear glaze. Can I use
the blue glaze to reglaze it or is this not a good piece to try to
reglaze?

3. This question is kind of related to question 2....With a piece
that already has two layers of glaze (both were brushed on the inside
of a bowl and not put on too thick) would putting a third layer on be
too thick? What can happen if glaze is too thick?

4. Again with the refiring.....Is there any way to cover up
underglaze that has been fired with a clear glaze on top?

Thanks in advance.
LMac

1. I have some pieces that I used wax resist on for decoration. A
couple of them I'm not pleased with after coming out of the glost
fire. Can I glaze the unglazed parts and refire the pieces?

Yes, it helps to heat the pot first, or thicken the glaze to get a thick
enough layer...



2. There was a question a week or so ago regarding reglazing and a
couple of the replies mentioned that it would be best to reglaze with
the same glaze. With that in mind.....There is a piece I want to try
to reglaze that has a blue glaze covered by a clear glaze. Can I use
the blue glaze to reglaze it or is this not a good piece to try to
reglaze?


It's hard to resimulate layers of glaze when reglazing--it will always
look different, but may improve over what it was before the attempt.


3. This question is kind of related to question 2....With a piece
that already has two layers of glaze (both were brushed on the inside
of a bowl and not put on too thick) would putting a third layer on be
too thick? What can happen if glaze is too thick?


The thicker the glaze layer, the likelier it will craze. Otherwise it's
not a problem.

4. Again with the refiring.....Is there any way to cover up
underglaze that has been fired with a clear glaze on top?


With a darker, or opaque glaze...

Brad Sondahl
--
For original art, music, pottery, and literature, visit my homepage
http://sondahl.com
Pottery sales page http://sondahl.freeyellow.com
My music site at mp3.com http://www.mp3.com/stations/sondahl

To reply to me directly, don't forget to take out the "garbage" from my
address.

a sandblaster could be your friend.

"Lindsay MacArthur" wrote in message
...
Actually I have several somewhat related questions

1. I have some pieces that I used wax resist on for decoration. A
couple of them I'm not pleased with after coming out of the glost
fire. Can I glaze the unglazed parts and refire the pieces?

2. There was a question a week or so ago regarding reglazing and a
couple of the replies mentioned that it would be best to reglaze with
the same glaze. With that in mind.....There is a piece I want to try
to reglaze that has a blue glaze covered by a clear glaze. Can I use
the blue glaze to reglaze it or is this not a good piece to try to
reglaze?

3. This question is kind of related to question 2....With a piece
that already has two layers of glaze (both were brushed on the inside
of a bowl and not put on too thick) would putting a third layer on be
too thick? What can happen if glaze is too thick?

4. Again with the refiring.....Is there any way to cover up
underglaze that has been fired with a clear glaze on top?

Thanks in advance.
LMac

How hot would I have to get the pot? Or...How would I thicken my
glaze? Just add more dry?
LMac

On Fri, 03 Oct 2003 15:33:57 GMT, Brad Sondahl
wrote:



1. I have some pieces that I used wax resist on for decoration. A
couple of them I'm not pleased with after coming out of the glost
fire. Can I glaze the unglazed parts and refire the pieces?

Yes, it helps to heat the pot first, or thicken the glaze to get a thick
enough layer...



2. There was a question a week or so ago regarding reglazing and a
couple of the replies mentioned that it would be best to reglaze with
the same glaze. With that in mind.....There is a piece I want to try
to reglaze that has a blue glaze covered by a clear glaze. Can I use
the blue glaze to reglaze it or is this not a good piece to try to
reglaze?


It's hard to resimulate layers of glaze when reglazing--it will always
look different, but may improve over what it was before the attempt.


3. This question is kind of related to question 2....With a piece
that already has two layers of glaze (both were brushed on the inside
of a bowl and not put on too thick) would putting a third layer on be
too thick? What can happen if glaze is too thick?


The thicker the glaze layer, the likelier it will craze. Otherwise it's
not a problem.

4. Again with the refiring.....Is there any way to cover up
underglaze that has been fired with a clear glaze on top?


With a darker, or opaque glaze...

Brad Sondahl

Under 200 degrees--you could use a warm oven. It's simpler to thicken the
glaze--take some water off the top when it's settled, which you can replace
after patching the glaze.

Lindsay MacArthur wrote:

How hot would I have to get the pot? Or...How would I thicken my
glaze? Just add more dry?
LMac

On Fri, 03 Oct 2003 15:33:57 GMT, Brad Sondahl
wrote:



1. I have some pieces that I used wax resist on for decoration. A
couple of them I'm not pleased with after coming out of the glost
fire. Can I glaze the unglazed parts and refire the pieces?

Yes, it helps to heat the pot first, or thicken the glaze to get a thick
enough layer...



2. There was a question a week or so ago regarding reglazing and a
couple of the replies mentioned that it would be best to reglaze with
the same glaze. With that in mind.....There is a piece I want to try
to reglaze that has a blue glaze covered by a clear glaze. Can I use
the blue glaze to reglaze it or is this not a good piece to try to
reglaze?


It's hard to resimulate layers of glaze when reglazing--it will always
look different, but may improve over what it was before the attempt.


3. This question is kind of related to question 2....With a piece
that already has two layers of glaze (both were brushed on the inside
of a bowl and not put on too thick) would putting a third layer on be
too thick? What can happen if glaze is too thick?


The thicker the glaze layer, the likelier it will craze. Otherwise it's
not a problem.

4. Again with the refiring.....Is there any way to cover up
underglaze that has been fired with a clear glaze on top?


With a darker, or opaque glaze...

Brad Sondahl

--
For original art, music, pottery, and literature, visit my homepage
http://sondahl.com
Pottery sales page http://sondahl.freeyellow.com
My music site at mp3.com http://www.mp3.com/stations/sondahl

To reply to me directly, don't forget to take out the "garbage" from my
address.

Thank you very much for the advice.
LMac

On Fri, 03 Oct 2003 19:02:33 GMT, Brad Sondahl
wrote:

Under 200 degrees--you could use a warm oven. It's simpler to thicken the
glaze--take some water off the top when it's settled, which you can replace
after patching the glaze.

Lindsay MacArthur wrote:

How hot would I have to get the pot? Or...How would I thicken my
glaze? Just add more dry?
LMac

On Fri, 03 Oct 2003 15:33:57 GMT, Brad Sondahl
wrote:



1. I have some pieces that I used wax resist on for decoration. A
couple of them I'm not pleased with after coming out of the glost
fire. Can I glaze the unglazed parts and refire the pieces?

Yes, it helps to heat the pot first, or thicken the glaze to get a thick
enough layer...



2. There was a question a week or so ago regarding reglazing and a
couple of the replies mentioned that it would be best to reglaze with
the same glaze. With that in mind.....There is a piece I want to try
to reglaze that has a blue glaze covered by a clear glaze. Can I use
the blue glaze to reglaze it or is this not a good piece to try to
reglaze?


It's hard to resimulate layers of glaze when reglazing--it will always
look different, but may improve over what it was before the attempt.


3. This question is kind of related to question 2....With a piece
that already has two layers of glaze (both were brushed on the inside
of a bowl and not put on too thick) would putting a third layer on be
too thick? What can happen if glaze is too thick?


The thicker the glaze layer, the likelier it will craze. Otherwise it's
not a problem.

4. Again with the refiring.....Is there any way to cover up
underglaze that has been fired with a clear glaze on top?


With a darker, or opaque glaze...

Brad Sondahl