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Ellwood Pickering
11-09-2015, 06:28 PM
Once upon a time, a company, possibly named Engelhard (sp?), sold a product, possibly named called "Thermoluster," in colors that may have included something called "Mother of Pearl."
Akin to Tetra-Butyl-Titanate, this stuff could be sprayed on finished ware prior to annealing and would create iridescent-like effects.
After scouring the web, I cannot find a current source.

The plan is to apply this, or something similar, to production, Raku-fired, ceramic field tile.

Does anyone know of a current source for this or a similar product?

Greg Vriethoff
11-10-2015, 03:29 PM
Ten years ago, Engelhard got out of the marketing biz and got in bed with Reusche (http://www.reuscheco.com/). Product should still be the same. Try them first.

You can try Duncan (http://www.duncanpaintstore.com/lusters-overglazes) as well, but they're not "glass people."

Mark Rendulic
11-25-2015, 12:08 AM
Heraeus sells a Thermo Lustre

Contact info:
Heraeus Materials Technology LLC.
Ceramic Colors Division
24 Union Hill Road
PA 19428 West Conshohocken
United States
Phone: +1 610.825 6050
Fax: +1 610.825 7061
gina.clay@heraeus.com
Here is a link to the PDF

http://heraeus-preciouscolours.com/media/webmedia_local/media/technical_information_new/en/Thermo_Lustres_Spraying.pdf

They will likely get you in contact with a distributor as they sell in fairly large volumes.
Hope this helps

Ellwood Pickering
12-01-2015, 06:19 PM
Thank you gentlemen. I will investigate your suggestions.

Pete VanderLaan
12-02-2015, 03:03 PM
Thank you gentlemen. I will investigate your suggestions.
******
Report back or Michael will send out a death squad.

Eben Horton
12-04-2015, 09:30 AM
You can fume with this stuff ?

I think the term fume is thrown around too loosely.

Spraying stannous in my opinion isn't fuming, it's irridizing.

Sticking a hot gather into a pile of stannous and letting it smoke up onto the piece is fuming.

Pete VanderLaan
12-04-2015, 09:51 AM
Some of us have called spraying stannous onto a piece "fuming" for 45 or more years now. We called putting stannous into a gob of hot glass "fuming" as well and did it because we didn't have a spray booth. Stannous certainly makes glass iridescent. I think the Iso titanates do a terrible job of irridizing.

Eben Horton
12-04-2015, 10:50 AM
. I think the Iso titanates do a terrible job of irridizing.

i always think of carnival glass when I see it.

Terry Crider
01-07-2016, 04:57 PM
I don't know if they still do, but W.R. Grace had it at one time.