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Tips & Techniques


In today's world Delphi stands out by offering friendly, personalized, and expert service. Our staff knows stained glass, fusing, mosaics and jewelry crafts because we love creating using these techniques. In fact, some of us are even teachers. Here is a sampling of the many questions and comments we have received from you and would like to share with you. Don't be surprised if you discover a letter of your own.

New Help Comments

Glass Fusing Comment

by Karina Foster on Feb 07, 2017

144 Posts
Top Contributor Gallery Artist

@nancyknuckey There are several reasons that air can be trapped and form a bubble in the center of your project. The most common is that the glass is being heated unevenly and the edges are becoming soft and sealing shut before the center softens. To help alleviate this, you can reduce the rate your kiln is heating at and add a "bubble squeeze" segment to your firing schedule. Another tactic some artist find useful is to position little chips of clear fusible glass (compatible with the project) at intervals around the outside edge to act like tent poles, creating a tiny gap on either side for air to escape during firing.

Glass Fusing Comment

by nancyknuckey on Jan 24, 2017

5 Posts

I am getting trapped air in the middle of the saucer/coaster mold. I am using 2 layered fully fused glass. Should I drill a hole in the middle?

Special Events & Classes

classes and workshops

Delphi offers a huge variety of beginning, intermediate and advanced classes in a wide variety of art glass and jewelry crafts. Classes are offered in different formats, from one 2-1/2 hour session, to all day classes, to multiple week sessions. Browse the schedule below to find the class that's right for you! All classes are in Delphi's state-of-the-art classrooms in our Lansing, Michigan location. Sign up for a class or request more information by calling 800-248-2048 or 517-394-4685.

Visit Delphi Creativity Center

Delphi Center : Visit Us

See finished examples of every technique, and try not to be overwhelmed by all the project ideas. Get tips from the pros to make your projects even better, take a one-day workshop, or even learn a new technique in our demo areas. There is always something creative going on at the Delphi!