Color de verre

Mina · #1 2015-03-23, 7:30am

Can colour de Verre mold be used in a bead kiln on boro setting? Can 104 COE Frit be used?

VivianLampwork · #2 2015-03-23, 7:33am

I know you can use 104 glass & frit with them. You can also use 96 frit & glass. I've used them both. I'm not sure about the kiln settings because it's been a while since I've used them. It has to be hot enough to melt everything & fill in the mold. Make sure you clean the molds well & use several layers of mold release before firing.

Eileen · #3 2015-03-23, 8:42am

I don't think the boro setting would do anything, fusing has to go hotter. How high does your kiln go?

5betsy · #4 2015-03-23, 9:07am

I think you can use any glass just use fusing schedule for whatever c.o.e you've put in the mold.

Mina · #5 2015-03-23, 9:18am

Highest temp my kiln can do is 1700F

2xMI · #6 2015-03-23, 9:24am

Don't know about boro, but fusing temps for 90, 96, and 104 are well below 1700.

Mimi

Eileen · #7 2015-03-23, 9:28am

Then you should be able to program your kiln to fuse. Off hand I think full fuse is 1400-1450 or something in that range. Do a search for fusing schedule for the molds. Maybe add your COE (google should find it if not here) and remember you need the full schedule, how fast to go up, how long to hold at the stages, ramp down times/temps etc.
You may need to experiment a bit with your kiln.

Eileen · #8 2015-03-23, 9:30am

Check the Fusing folder too, you might find something that would help:

http://lampworketc.com/forums/forumdisplay.php?f=33

VivianLampwork · #9 2015-03-23, 9:30am

Here ya go. They list the firing schedules for different projects.

http://www.colourdeverre.com/learn.php?c=7

Mina · #10 2015-03-23, 10:02am

Thanks...Now I will be able to make a decision based on solid information

hyperT · #11 2015-03-23, 1:15pm

These molds are made from a material named "Silastic" a plastic and silicone combo that is very high temp but remains flexible.
I have used it for molds for metals as well, some well above the range of a small kiln for casing.

Just remember it is very possible to trap air in the pieces if the frit is not fine enough. Pate De Verre was made from powders mixed into a paste then applied to the mold for fusing.
If left soaking in the heat the air bubbles will rise and burst, but it is better not to have them to start with.

Mina · #12 2015-03-23, 1:23pm

HyperT, that sounds very interesting. More info on that would be great. Did you mean to post a picture? If you did, I don't see it.

hyperT · #13 2015-03-23, 1:37pm

More info on what?
No I didn't mean to post a picture, but here is one
This is the Whital Tatum Co. It is now the Wheaton Glass Museum.
It was the first glass factory in the US,
and my Grandfather and Great Uncle worked there.
A lot of glass was made and molded here.

Mina · #14 2015-03-23, 2:20pm

Quote:

Originally Posted by hyperT

These molds are made from a material named "Silastic" a plastic and silicone combo that is very high temp but remains flexible.
I have used it for molds for metals as well, some well above the range of a small kiln for casing.

Just remember it is very possible to trap air in the pieces if the frit is not fine enough. Pate De Verre was made from powders mixed into a paste then applied to the mold for fusing.
If left soaking in the heat the air bubbles will rise and burst, but it is better not to have them to start with.

You said "these mold." I was wondering what molds you were referring to.

hyperT · #15 2015-03-23, 2:39pm

LOL the ones we are talking about here.
the colour de Verre molds