For this pendant I used 2 squares of the 96-16 luminescent glass. One square was placed luminescent side down towards the textured Kaiser Lee Board shelf while the other piece was on top of it with a piece of fiber paper in between to create a channel for the chain. Once in a while the luminescent stays even without covering it. We just don’t know, without trying. Isn’t it amazing how the same coating can have such different effects?
Luminescent Fired Up and Down
by Petra Kaiser | Mar 21, 2020 | Inspiration, Kiln Forming and Glass Fusing Tutorials | 8 comments
I fired a gorgeous piece of Wissmach red orange luminescent, with black silhouetted lake scene. Fired right side up, covered with a sheet of Kiln paper on top. It is beautiful and did not lose any luminesence. I made the kiln paper about 1 inch larger all around and used 1″ posts to keep it in place and covered.
Hi Adele, do you have a picture you could share with us.
This is my 11 x 16 red/orange 96 coe luminesecent lake scene. –just can’t find a place to attach or copy it.
I have been using your luminescent for the past year with MANY projects. I have fired it “face up”, on it’s side, and “face down” with success! It is just beautiful.
Thank you, Annie, we are so glad you enjoy it.
I love the luminescent glass but have had it disappear on the second firing when done face up. In reading a few comments it seems it needs to be covered even then and fired below 1400 and lower is even better, such as slumping temps of 1290. I have done it first at 1390 face down on bullseye paper & it comes out beautifully. Then I added it to my project and fired it face up on full fuse, 1490 and it disappeared. I am guessing that is where I went wrong.
Any suggestions will be much appreciated, I love this glass. Thank you, Charlene
I think you have found the answer. There is really no need to fire it face down first, if you are planning to add inclusions. I attach frit, stringers, small glass pieces to the luminescent surface and fire face up to contour temp of 1375, and always covered with kiln paper. Hold the paper in place lightly with small kiln posts to prevent it from flying off.
This is what I have found:
Luminescent is made by Wissmach
Do not confuse luminescent glass with irid glass. Irid can be fired face up or down and DOES NOT have to be covered.
Top Temp –
1430º – Face down
1270º – slumping okay if covered
1370º – face up contoured if fired with covering – it will really shine
The more the fiber under the luminescent when firing face down, the brighter the color.
The shinny side is the luminescent side