焼成
Full fusing occurs at around 780°C
Japanese: フルフュージングは780°C前後
Full fusing occurs at around 780°C (for COE 90). This is the temperature at which the pieces fuse seamlessly all the way to the surface. The seam disappears, leaving a smooth finish.
A good guideline for fully fusing the sheets together and achieving a smooth, even surface is approximately 780°C (Bullseye COE 90).
If it's too runny, adjust it to -5°C; if you want to thicken it a bit more, adjust it to +5°C.
When doing full fusing with COE 90 glass, the maximum temperature is generally around 780°C. This is the temperature needed to fuse the pieces together seamlessly all the way to the surface.
The seams where the layers were joined disappear, leaving the surface smooth and the edges rounded.
If you're unsure, start by firing one piece at 780°C to get a feel for your kiln's characteristics. Then fine-tune the temperature within a range of ±5°C.
This entry is written in Japanese by Rei Chikaoka and translated for readers outside Japan. If something reads oddly, the original is the source of truth.