This page is a work in progress and information for glass fusers will continue to be added to help you understand the essentials of glass fusing and programming a kiln for fusing glass.

 It's a great idea to start a journal of firing schedules that you can make notes in for each project. This will help you to review your schedules, if you decide you need to make changes. These firing schedules are starting off points to help you develop firing schedules that work in your kiln. Each kiln will fire a bit differently and hold heat differently. If you find that you don't get the desired results from the schedules listed below, try changing the hold time or top temperature until you get your desired results. (That's why you want to have that firing schedule journal!)

 It is helpful to vent your kiln when firing to help prevent devitrification from burnoff. When using adhesives or shelf papers, gases or vapors can settle on your fused glass pieces if there is no way for them to escape the kiln. Venting can be achieved by placing small squares of 1/8" or 1/4" fiber paper between the lid and the kiln during firing. This little space allows residues to burn off and escape the kiln. It can also help to slowly speed the cooling rate through the devitrification range on the way to annealing temperatures. Make sure that your kiln has ample space all the way around it and that it is not too close to walls or flammable materials. Visit your kiln manufacturer's website for specific information.

Here are some sample firing schedules to get you started:

[Assumptions: 2 layers of standard thickness glass (3mm or 1/8") stacked to make a thickness of 6mm or 1/4"] 

These firing schedules are fairly conservative, so you shouldn't have any breakage.  However, please note that these firing schedules are just general guidelines and recommendations made by Streuter Technologies and it is up to the user to take into account their glass fusing setup and design, materials used and kiln being used to yield their desired results.  

dph = degrees per hour (Fahrenheit)

AFAP = as fast as possible, represented by 9999 when programming your kiln

min = minutes

FULL FUSE: This firing schedule is for a full fuse, meaning that the layers of glass will melt together and have no texture left.

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SOFT TACK or "Contour" Fuse:  This firing schedule is for a tack, soft or "contour" fuse. The fused piece will have a slight texture, but the edges will be very rounded

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TEXTURAL TACK FUSE: This firing schedule is for textural tack fuse and is used in creating fused glass mosaics. The fused piece will be highly textured.

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SLUMP SCHEDULE:  This firing schedule is for a slump schedule. After using one of the above schedules to fuse your pieces together, you're ready to give it shape by placing it in a mold. Make sure that the glass is not bigger than your ceramic mold, or you can potentially break your glass, your mold or both while firing.

dph = degrees per hour (Fahrenheit)

AFAP = as fast as possible, represented by 9999 when programming your kiln

min = minutes

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For more information or questions regarding firing schedules, please e-mail Carrie Strope at This e-mail address is being protected from spambots. You need JavaScript enabled to view it