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Issue #020 - Boiling Glass
April 30, 2010

Hot Out of the Kiln

April 30, 2010


Hot Out of the Kiln brings you the latest information, ideas, and resources for your glass fusing experience. If you like this newsletter, please forward it to share it with your friends.

In this Issue of Hot Out of the Kiln:

1. Feature Article
2. Quote of the Month
3. Since Last E-zine
4. Reader Question
5. Tips and Tricks
6. Additions to Site
7. Product Review

Feature Article - Boiling Some Glass

This month I have decided to do a procedure where I was boiling some glass. The experiment was a really interesting and fun project. I have researched and looked at these boiled glass projects for quite some time. So, I of course wanted to attempt this method, but wasn’t quite sure which method would give me the best results.

I have had a few individuals write inquiring how to obtain this look in their glass. I don’t know if you have seen these pieces on the internet, but each one is breathtakingly beautiful and unique. Cell shaped formations of various colors across the top layer of glass plates and bowls are popping up all over the internet lately.

This method is not new; in fact it is a method that Klaus Moje is well known for in his artwork. For more information on how glass reacts at a high temperature, check out the Bullseye TechNotes #4 .

There are several ways you can purposefully obtain bubbles in glass:

1. Bubble Powder - Add bubble powder to the lower layer of glass. Once heated the chemicals cause bubbles to form in the glass and they rise through the layers and pull the colors up to the top level.

2. High Temperature – This requires bringing the glass to above 1700 degrees Fahrenheit

3. Baking Soda – Added to the lower layer of glass.

4. Borax – Also added to the lower layer of glass.

5. Arrangement of Glass – The glass is arranged so that air is trapped.

Determine which method you would like to use. Layers of glass are lined up inside a dam so that the hot glass doesn’t spread out and run all over the kiln shelf. As the glass is heated the bubbles rise from the bottom layer up and through to the top layer dragging and pulling up the colors of each layer. As the bubbles pop, the colors spread out in almost a cell formation across the top of the glass.

Quote of the Month

“Imagination is more important than knowledge" – Albert Einstein

Since Last E-Zine

This has really been a busy month, not only with lots of new projects, but I have also been learning about making videos. Of course, I had to jump in with both feet and start this new adventure. I bought a new camcorder, tripod, lights, and programs to edit the filming.

Years ago I did a video when I took a quick peek inside my kiln during a bottle slumping process. I wanted to put this short movie on the site when I wrote that particular page. It is a really poor quality video, and has been on YouTube for quite a while. Low and behold, it has become popular with over 18,000 views to date.

This got me to thinking that maybe I should do a few more videos for the site. What fun! Personally, I don’t like having pictures taken of me, so I have been making a few where I didn’t actually have to be on camera. This has really helped me learn a lot about the process, and given me a little more experience in lighting, taping, audio and editing.

If you would like to check them out, my YouTube Channel can be located at Glassfus on Youtube. While learning all about producing DVD’s, I did projects on Comb Honey, a Stringer Weaving Bowl, Puffy Glass, Boiling Glass and a few informational videos. These were all videotaped and not only were the pages put up on the site, but each one has a video showing how to accomplish the procedure.

This experience was leading up to me producing a “Beginner Glass Fusing Class” video. So, I took a trip to Arizona to video tape my youngest on this production. I was there for about a week and am now home doing the editing of the film. I should be finished with this beginner video shortly and will then be selling it on the site.

This video is like attending a beginner fusing class, except that it not only talks about the basics, but takes you through a first firing. I have a lot of visitors who are just starting out on their glass fusing venture and hopefully this DVD will assist them in learning all the basic.

I am hoping to eventually produce more videos on various procedures. I would love to hear your feedback on what type of videos you might be interested in seeing. Please drop me a line and let me know what you would like to see…thanks!

Reader Question

Therese writes:

Hello. I was given a red bottle by a coworker to slump. I thought the color was paint which would stay or disappear. Unfortunately, I now believe that the color on the bottle is actually acrylic or plastic. The kiln started to emit a burnt odor and when I opened it, there was smoke and the fire paper had turned black. I remove the bottle and slumping mold and fired another bottle and the paper is again turning black. Have I forever damaged my kiln??? I would appreciate your advice. greatly.

Connie writes:

Hi Therese... No, you have not forever damaged your kiln. Don't panic...I did when I had a fire inside my kiln, so I know what you are feeling.

When I had a fire inside my kiln and the entire inside turned black, I called Jen-Ken the manufacturer of my kiln. They suggested that I take everything out of the kiln...vacuum it out completely...then do a firing without anything inside....take it to at least 1500-1600 degrees Fahrenheit. This will burn out any residue inside the unit.

Once you have done this everything should be like brand new inside the kiln...try it and see what happens.

Kiln paper always turns black or a dark color when it is firing...once the firing is completed it should turn white. Let me know how it comes out...

Tips and Tricks

Boiling Glass - After obtaining desired bubbles in the glass, bring the piece down to about 1500 degrees Fahrenheit and hold for about 30 minutes so that the bubbles pop and the glass has a chance to even out.

Additions to the Site

04/01/10 – Easter Egg Chicken

04/02/10 – Duck Face

04/03/10 – Duck Egg

04/04/10 – Fancy Egg

04/06/10 – Comb Honey

04/08/10 – Stringer Bowl

04/11/10 – Puffy Glass

04/16/10 – Earth Day

04/16/10 – Plant A Tree

04/17/10 – Boiling Glass

Product Review - Bubble Powder has the bubble powder if you are interested in attempting this particular method for achieving the boiled glass look. This is a very simple and easy way to achieve bubbles in your glass artwork. It comes in a 2 oz container for $5.95. This powder can be used with any and all COE’s of glass. It can be mixed with equal parts of the powder and enamel or powdered frit.

If you are interested in bubble powder and other embellishments, check out the “Fusing Embellishment Kit” for only $49.95. This assortment contains not only the bubble powder, but also some Dicro Slide™, Rub ‘N’ Etch stencils, low-fire gold decals, Glassline Colored Paper, Mica Powder, and some Etching Cream.

For these and other fantastic products, visit

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See you next month…

Glass Fusing Made Easy

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