Firing in the lower ranges of these temperatures (1,099–1,251 °F) is called slumping. Firing in the middle ranges of these temperatures (1,251–1,350 °F) is considered "tack fusing". Firing the glass at the higher spectrum of this range (1,350–1,501 °F) is a "full fuse".
"Adventures in Paradise " Series, I developed my Fusing Technique I call "Adventures in Paradise" Series where I use recycledblown glass treasures, which I break up, and mix and match the colors to form a glass mosaic to achieve a aesthetic cohesive art-full work. I then fuse them to full fusing temperatures, and once cooled, the piece generally will go back into the kiln for a final firing to slump into a particular shape, then cooled again. GO BACK
SFUMATO A new technique developed by Artist Rick Strini used in fusing and slumping. Sfumato comes from the Italian "sfumare", “to tone down” or “to evaporate like smoke”. The most prominent practitioner of sfumato was Leonardo da Vinci, and his famous painting of the Mona Lisa exhibits the technique. Leonardo da Vinci described sfumato as "without lines or borders, in the manner of smoke or beyond the focus plane.