I am having problems with pits and bubbles in my enamel.
Hallo Fawniel, There are so many reasons for pits and bubbles. -Did you
clean your metal before enameling? First thing to do before laying on
the enamel (wet or dry) is cleaning the surface, it should be as
clean as when you should use adhesives. No grease, dust or even any
cleaningliquid or sparex should stay on it. -When the pits are black,
it could be oxidizing copper flying around in your working area,
fallen into the the drying enamel. -When it is just a pit, it could be
that your enamel isn’t melted totally, it is just the 'orange-peel’
stadium. A bit longer or a bit hotter burning will give a perfect
surface. Every enamel has got its own melting point, and the fist
burnings don’t have to be perfect, you finish the piece by melting all
to the perfect temperature. -Of course it could be caused by a short
of enamel, than there is no enamel underneith the pit. -Some other
reasons for your enamel surface to look uneven: dust fallen on the
drying enamel (I hate cleaning, but your working place should be as
dustfree as possible. Only don’t sweep away the dust in advantage of
enameling, because then the dust will come back down all day. When I
have to go on with a project and there is a lot of dust I leave as
silent as possible or I clean it wet and take care nothing is
disturbed before I can wet it. -Your enamel can be dirty, wash it out
before you use it.
Bubbles can be the resuld of still wet enamel, drying in your kiln
while burning the enamel and cousing a bubble in the melted enamel.
Your enamel must be really dry before putting it in the kiln, better
wait to long than take a risk. Sometimes I wait a night to be sure,
when the project is big and the air not so dry (I am dutch and here in
Holland the air is often quit damp).
When you do a lot of enameling there are quit a lot of good books to
buy. I use one very often, new and american: ‘enamels, enameling,
enamelists’ from Glenice Lesley Matthews, 1984, Chilton Book Company,
Pennsylvania 19089, isbn 0-8019-7285-X. It helped me to find my own
way to enamel and gives answers to almost any question.
I hope I could help you a bit, ask again when it is not clear,