REAL bubbles in kiln glass

Can anyone tell me how to achieve large bubbles, placed in
predetermined spots in kiln fired glass? (using two layers of glass)

Thanks, Deet

Dieter Hager wrote:

Can anyone tell me how to achieve large bubbles, placed in
predetermined spots in kiln fired glass? (using two layers of glass)

Thanks, Deet

Not sure what you call large. Place a clear chip between the layers
where you want the bubbles. Watch at your top temp so the bubbles don't
break or get too near the surface.
--
Jack


http://photos.yahoo.com/bc/xmissionbobo/

The traditional way of making bubbles is baking soda (bicarbonate of soda)
It can be used with molten glass. The amount of gas and therefore the size
of the bubble depends on the amount of soda and in this situation clearly
the size of the bubble depends on how much gas leaks out during the
relatively slow heating process. You will have to experiment.

--
Mike Firth
Hot Glass Bits Furnace Working Website
http://users.ticnet.com/mikefirth/I-UPSUMM.HTM
shows recently changed files, click on link
"nJb" wrote in message
...
Dieter Hager wrote:

Can anyone tell me how to achieve large bubbles, placed in
predetermined spots in kiln fired glass? (using two layers of glass)

Thanks, Deet

Not sure what you call large. Place a clear chip between the layers
where you want the bubbles. Watch at your top temp so the bubbles don't
break or get too near the surface.
--
Jack


http://photos.yahoo.com/bc/xmissionbobo/

"Mike Firth" wrote in message ...
The traditional way of making bubbles is baking soda (bicarbonate of soda)
It can be used with molten glass. The amount of gas and therefore the size
of the bubble depends on the amount of soda and in this situation clearly
the size of the bubble depends on how much gas leaks out during the
relatively slow heating process. You will have to experiment.

--
Mike Firth
Hot Glass Bits Furnace Working Website
http://users.ticnet.com/mikefirth/I-UPSUMM.HTM
shows recently changed files, click on link
"nJb" wrote in message
...
Dieter Hager wrote:

Can anyone tell me how to achieve large bubbles, placed in
predetermined spots in kiln fired glass? (using two layers of glass)

Thanks, Deet

Not sure what you call large. Place a clear chip between the layers
where you want the bubbles. Watch at your top temp so the bubbles don't
break or get too near the surface.
--
Jack


http://photos.yahoo.com/bc/xmissionbobo/


Thanks Mike and Jack for your suggestions!

Using baking soda between two layers of glass, how do I go about it?
Would I mix it with a bit of water? I am not blowing glass, it´s kiln-worked.

Deet

Dieter Hager wrote:

"Mike Firth" wrote in message ...
The traditional way of making bubbles is baking soda (bicarbonate of soda)
It can be used with molten glass. The amount of gas and therefore the size
of the bubble depends on the amount of soda and in this situation clearly
the size of the bubble depends on how much gas leaks out during the
relatively slow heating process. You will have to experiment.

--
Mike Firth
Hot Glass Bits Furnace Working Website
http://users.ticnet.com/mikefirth/I-UPSUMM.HTM
shows recently changed files, click on link
"nJb" wrote in message
...
Dieter Hager wrote:

Can anyone tell me how to achieve large bubbles, placed in
predetermined spots in kiln fired glass? (using two layers of glass)

Thanks, Deet

Not sure what you call large. Place a clear chip between the layers
where you want the bubbles. Watch at your top temp so the bubbles don't
break or get too near the surface.
--
Jack


http://photos.yahoo.com/bc/xmissionbobo/

Thanks Mike and Jack for your suggestions!

Using baking soda between two layers of glass, how do I go about it?
Would I mix it with a bit of water? I am not blowing glass, it´s kiln-worked.

Deet

Do some tests with a tiny dab of baking soda and see what happens. You
could make a solution, put a drop where you want a bubble. let it dry
before putting the top layer on. If the bubble is too small/large use a
more concentrated solution or more drops, allowing drying time between
drops. I've heard there are bubble compounds available but they
shouldn't be necessary.

How about if we somehow give you the bubbles that I don't want in my
projects.
--
Jack


http://photos.yahoo.com/bc/xmissionbobo/

I like that last idea - "Now opening - the Bubble Exchange - lookup your
bubbles by category (actual sized bubbles by diameter and height coming
soon. List your own bubbles - all bubbles must be transportable, any
bubbles made of biodegradable soap or other transient substances will be
deleted automatically."

--
Mike Firth
Hot Glass Bits Furnace Working Website
http://users.ticnet.com/mikefirth/I-UPSUMM.HTM
shows recently changed files, click on link
"nJb" wrote in message
...
Dieter Hager wrote:

"Mike Firth" wrote in message
...
The traditional way of making bubbles is baking soda (bicarbonate of
soda)
It can be used with molten glass. The amount of gas and therefore the
size
of the bubble depends on the amount of soda and in this situation
clearly
the size of the bubble depends on how much gas leaks out during the
relatively slow heating process. You will have to experiment.

--
Mike Firth
Hot Glass Bits Furnace Working Website
http://users.ticnet.com/mikefirth/I-UPSUMM.HTM
shows recently changed files, click on link
"nJb" wrote in message
...
Dieter Hager wrote:

Can anyone tell me how to achieve large bubbles, placed in
predetermined spots in kiln fired glass? (using two layers of
glass)

Thanks, Deet

Not sure what you call large. Place a clear chip between the layers
where you want the bubbles. Watch at your top temp so the bubbles
don't
break or get too near the surface.
--
Jack


http://photos.yahoo.com/bc/xmissionbobo/

Thanks Mike and Jack for your suggestions!

Using baking soda between two layers of glass, how do I go about it?
Would I mix it with a bit of water? I am not blowing glass, it´s
kiln-worked.

Deet

Do some tests with a tiny dab of baking soda and see what happens. You
could make a solution, put a drop where you want a bubble. let it dry
before putting the top layer on. If the bubble is too small/large use a
more concentrated solution or more drops, allowing drying time between
drops. I've heard there are bubble compounds available but they
shouldn't be necessary.

How about if we somehow give you the bubbles that I don't want in my
projects.
--
Jack


http://photos.yahoo.com/bc/xmissionbobo/