All glass is not equal. One of the most important decisions you have to make as a glass artist is choosing which glass to use for your work. We firmly believe that Bullseye Glass is the very best glass for fusing, which is why we choose it for our classes, our stock and our personal practice.
Choose compatible glass. Choose a huge range. Choose consistency. Choose great discounts: Choose Bullseye Glass.
Benefits of Bullseye Glass:
Which glass is best for fusing? Glass types and compatibility in more depth:
There are many different types of glass, but they must be compatible in order for them to fuse together properly in a kiln. Some glass ranges include:
Why is compatibility and issue? This is important as if you try to fuse two different glass types together your piece is likely to crack, be weak, or fail to fuse together as you would like.This is largely due to the differing co-efficient of expansion (CoE) between glass types, in other words differences in the amount the glass expands and contracts in different temperatures. However even within a particular range there can be compatibiliy issues if not tested, due to the chemical differences within the glass. They might run more when molten or cause devitrification (a hazy mark on the glass). Not all glass ranges are ‘tested’ compatible so glass artists are generally advised to test every combination.
Fully compatible range: To solve this issue, Bullseye Glass have created a comprehensive range of glass colours, styles and products that have been tested as compatible with each other. Here at Warm Glass we only stock Bullseye compatible glass and products, so you can buy anything from us safe in the knowledge that it will fire together without any of these problems. We believe Bullseye is the best range for studio work. Every batch is tested, it rarely devitrifies and is controllable in the kiln, making it excellent for slumping. Everything we sell is Bullseye compatible so you can buy with confidence.
Here are answers to some of the questions those interested in switching to Bullseye Glass ask most frequently:
A: In most respects Bullseye Glass is very similar to these other makes of glass. You can work with Bullseye in the same way as Spectrum and Uroboros System 96 glass, but because it is CoE90 rather than CoE96, they can't be used together. The firing schedules you use for Bullseye are slightly different for this reason. See our firing schedule page for details.
A: No, Bullseye Glass is CoE90, not CoE96 so has a different expansion rate to System 96. However, all Bullseye Glass styles and the accessories we stock can be used with each other without any problem.
A: Yes, absolutely. You can use your decals, Glassline pens, enamels, mica etc with Bullseye Glass.
A: The only change you would need to make is to use slightly different firing schedules. Take a look at our Kiln Schedules page for our basic Bullseye firing schedules. Programming glass kilns is simple, and videos on how to do this can be viewed on our Video Tutorials page. We also have firing schedules for each mould and decal we sell, just look at the product page for all the information you need. If you need any further help then please do not hesitate to contact us.
A: Yes, all our glass is CoE90, Bullseye Glass compatible and suitable for applications such as glass fusing, glass casting and glass slumping (unless otherwise stated in the description). We also stock Bullseye rods suitable for torch-working.
A: Bullseye has a huge range of over 250 glass styles, including their low cost base glass called Tekta, and many beautiful decorative styles. The base colours are available in 2mm and 3mm sheet glass, and most are also available as powders, frits, billet, stringers, rods and confetti. We also stock Bullseye compatible CBS Dichroic glass, millefiori and murrine.
A: You will see on some of the glass descriptions that the glass style is a 'Striker'. This means that while the unfired sheet may appear pale or mottled, it will reach its target colour upon firing. The product image will show what the glass sheet will look like before and after firing.
A: We want our customers to be able to buy with confidence, so all our glass is CoE90, Bullseye Glass compatible and suitable for applications such as glass fusing, glass casting and glass slumping. In the rare instances where we may stock a non-compatible item (for example some flameworking rods) this is always very clearly stated in the product description.