Field – The City – Marble glazing plans

I’ve been having a lot of trouble trying to work out how it is exactly that marbles are glazed. I don’t know a huge amount about glaze, but I know that usually when you make a mug or a bowl, you leave the surface that it rests on unglazed so that the glaze (which melts during the firing process) doesn’t stick your object to the bottom of the kiln. I tried to research this using the internet, but there was very little information at all on the subject when I googled “how to glaze marbles”, and mostly got information about people using glass marbles melted down AS a glaze.

....*sarcastic clap*

….*sarcastic clap*

When I spoke to Duncan (the ceramics tutor) about it, he was very helpful and explained to me the best course of action was that I should make a clay tray, with spikes embedded in it made out of kiln wire. I could then perch the marbles ontop of these spikes, so they had as little contact as possible with any surface allowing them to be glazed all over. Thinking about it, this is probably why Bennington marbles are known for their distinctive three “eyes”, although it is a shame that there wasn’t any information explaining that to me online.

I have started to make this tray, with a slab of “crack” clay recommended by Duncan (I don’t know why that’s better but I trust his judgement), and sharpening lengths of kiln wire using a hand drill and a sander.

cutting kiln wire into lots of equal lengths

cutting kiln wire into lots of equal lengths

remove drill bit from hand drill, replace with kiln wire

remove drill bit from hand drill, replace with kiln wire

Spin the drill while pressing against the sander

Spin the drill while pressing against the sander

put spikes into clay and voilà!

put spikes into clay and voilà!

Advertisements


Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s