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Tiny pin pricks in the surface of the glass sound like small bubbles that have come to the surface. Adjusting your firing schedule may help. Remember that your kiln may run a little hot. This is normal and will take some use before you will know how your kiln is performing. Here is one suggestion. Try lowering the ramp temperature to 300 degrees per hour and then lowering the ending temperature to 1450 degrees. This may help to keep the bubbles from reaching the surface. Each color glass also responds diferently to heat. Ex. Black heats faster than white.

I recently purchased the Studio in a Box (Easy Pro 15-6 kiln) and I love it. I've made a few coasters to start getting familiar with the process. Both have turned out great except they appear to have a few very tiny "pin pricks" on the surface. I'm using the directions/firing schedule from Contemporary Fused Glass Chapter 8 with the glass provided with my kiln package. Any suggestions? Jackie

Try downloading the Adobe Acrobat Reader on to your system and see if that helps. Use can use link above.

difficult to download.

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@TheDelphian I have twp platters stuck inside their stainless steel molds, will flipping the work & heating in kiln process work to release the glass?? Patrice Higgins

I found this very heplful being I haven't used glass for a while Thanks M.

Your introduction to fising was very informative I just wish it had went farther. I had a new kiln delivered about 6 months ago and it has set in my shop and never been turned on.

to prepare a metal table for mosaic, you will need to add plywood or greenboard to the top...glass does not stick well on metal. next mix some elmers white glue with water and brush on the wood. this makes it water resistant. mosaic as usual and grout. seal with a good waterproof sealer. find this at a swimming pool tile supply store. mine has withstood the elements for over 10 years. good luck, ani

In reply to #5, I stopped having the sharp edge and other fusing problems when I began using the recommended System 96 fusing schedule found at http://www.system96.com/Pages/KnowledegBase1.html. I use the schedules listed for everything I do, even when I'm using non system 96 glass (which is now very rarely) and have not had any more bubbles, sharp edges or uneven firings. Also, I've found that if you don't use shelf paper and rely solely on the kiln wash, you may have sticking and residue problems. I found that soaking in white or cider vinegar will help remove this. You can't soak too long, so have patience.