Firing low iron (ultra clear) float

This is the main board for discussing general techniques, tools, and processes for fusing, slumping, and related kiln-forming activities.

Moderators: Brad Walker, Tony Smith

Post Reply
Peter Angel
Posts: 186
Joined: Fri Oct 31, 2008 9:26 am
Location: Newtown, Sydney, Australia.

Firing low iron (ultra clear) float

Post by Peter Angel »

Hello all,

I have bought some 3mm panels of a generic low iron float and I want to fuse, slump and decorate them using various enamels.

I'm not sure what temperatures to use.

Does the low iron mean it fires more like bullseye/system 96 or should I just treat it like firing greenish float?

(I know I can test but some starting points would save me a lot of test firings!)

I have attached a technical sheet for an alternative low iron glass called Starphire. I'm hoping someone could decipher the technical mumbo-jumbo.

Pete
Last edited by Peter Angel on Wed Apr 20, 2016 6:41 pm, edited 1 time in total.
Peter Angel
http://peterangelart.blogspot.com/

A bigger kiln, A bigger kiln, my kingdom for a bigger kiln.
Peter Angel
Posts: 186
Joined: Fri Oct 31, 2008 9:26 am
Location: Newtown, Sydney, Australia.

Re: Firing low iron (ultra clear) float

Post by Peter Angel »

I'm trying to attach a pdf but it's not attaching :cry:
Peter Angel
http://peterangelart.blogspot.com/

A bigger kiln, A bigger kiln, my kingdom for a bigger kiln.
Peter Angel
Posts: 186
Joined: Fri Oct 31, 2008 9:26 am
Location: Newtown, Sydney, Australia.

Re: Firing low iron (ultra clear) float

Post by Peter Angel »

Heres what it looks like (if that helps):
images.jpg
images.jpg (4.61 KiB) Viewed 8591 times
Peter Angel
http://peterangelart.blogspot.com/

A bigger kiln, A bigger kiln, my kingdom for a bigger kiln.
Brad Walker
Site Admin
Posts: 1489
Joined: Fri Mar 07, 2003 9:33 pm
Location: North Carolina, USA
Contact:

Re: Firing low iron (ultra clear) float

Post by Brad Walker »

Peter Angel wrote:I'm trying to attach a pdf but it's not attaching :cry:
Unfortunately, attachments must be jpg files. If the pdf is online, you can post a link to it. Or send it to me and I'll put it online for you.

As for your original question, I would fire low iron float the same as regular float.
Bert Weiss
Posts: 2339
Joined: Tue Mar 11, 2003 12:06 am
Location: Chatham NH
Contact:

Re: Firing low iron (ultra clear) float

Post by Bert Weiss »

I generally anneal regular float at 1000 and I use 1030 for low iron.

PPG Starphire has a COE of 90, but is most certainly not compatible with Bullseye.

As to vitreous colors, you fire according to the colors, then anneal according to the base glass.
Bert

Bert Weiss Art Glass*
http://www.customartglass.com
Furniture Lighting Sculpture Tableware
Architectural Commissions
Post Reply