air bubbles

If you want air bubbles, then you don't want chemicals.

If you are working with molten glass, then the trick would be to make a gather and press or blow it into a mould with a number of protrusions on the inside. This will leave small recesses on the outside of the glass. Then put another gather on the outside, and air will be trapped in the recesses.

With molten glass, rolling the glass on powdered or lumpy baking soda (not powder) then casing the stuff will produce bubbles at the interface. A bed of nails can be used to produce uniformly spaced bubbles, again cased.

seeded glass has bubbles and they are created by throwing a potato or wet block of wood into the molten glass. m

Hallo I fuse color glass onto clear glass , and I would like to enclose air bubbles between the two layers . I have seen it somewhere , so it must be possible .

Cheers

Jason

If the glass gets soft enough to put indentations in it, then do that with a suitable tool, then put the other layer on top of it, and fuse the two together.

What manufacturers are you using? If you put Bullseye texture side to texture side you will create bubbles between layers easily, watch your top temp or the bubbles will rise and leave a pitted surface.

I tried to post this once, but Google ate my post. Sorry if it comes up twice.

My fusing instructor used baking soda between layers of glass to produce somewhat controlled bubbles. And I can't recall if she used it dry or as a paste. Some fusers also use "fibroid" glass - two layers at 90degree angles from each other, fibroid sides together. That can produce a nice, even grid of bubbles. You can also create bubbles between layers by use of frit and stringer.

Go to warmglass.com and search the bulletin board there for more ideas

- Bev

I fuse color glass onto clear glass , and I would like to enclose air bubbles between the two layers . I have seen it somewhere , so it must be possible .

Cheers >

Baking soda ??? I know lampworkers use that trick sometimes...

Cheryl of DRAGON BEADS Flameworked beads and glass

I you plan on using baking soda it must be used sparingly. I love tons of bubbles, but it will create problems and fracture the glass if too much is used.

I've used it fusing and lampworking.

Starlia