Question about undercoat

I'm using my red undercoat. I know you are suppose to put it on, then
put the clear overglaze over it, then fire. My question is if you can
fire it first without the overglaze on it to make sure the coverage is
correct, then fire again with the overglaze.

*Catch you on the flipside*

"April Ann" wrote in message
...
I'm using my red undercoat. I know you are suppose to put it on, then
put the clear overglaze over it, then fire. My question is if you can
fire it first without the overglaze on it to make sure the coverage is
correct, then fire again with the overglaze.

*Catch you on the flipside*


Yes you can. I put underglaze on greenware and bisque it. Alternatively
you can underglaze bisqueware and fire again to about 700C. The brush
strokes and look of underglaze never shows entirely until you have glazed
and fired it though, when of course it is too late change. The best thing
is to do lots of testing. Different underglazes react differently and
require more or less to be applied. Also some reds and purples react badly
to higher temperatures. Its all about testing and practice )

(April Ann) wrote in message ...
I'm using my red undercoat. I know you are suppose to put it on, then
put the clear overglaze over it, then fire. My question is if you can
fire it first without the overglaze on it to make sure the coverage is
correct, then fire again with the overglaze.

*Catch you on the flipside*



i agree with Annmarie, best way is to paint the underglaze onto
greenware then fire. (some maverick colours need 4 instead of three
coats)when it is bisque, wet the piece and you will see if there are
any patches---if so give it another coat and allow to dry thoroughly
before applying the glaze, doing the first coat gently so as not to
"wash" off the unfired layer of underglaze.

Thanks for the replies and advice. I'll use the underglaze on the
greenware next time. It's too late this time. I'm taking the items to
be fired tonight, so we'll see what happens.

*Catch you on the flipside*