Ferro Frit CC-263

Alternate Names: Frit CC263, Frit CC268, Frit CC-268

Description: Low expansion high CaO balanced boron source

Oxide	Analysis	Formula
CaO	9.00%	0.56
K2O	3.00%	0.11
MgO	1.00%	0.09
Na2O	2.50%	0.14
SrO	3.00%	0.10
ZrO2	0.50%	0.01
B2O3	20.00%	1.00
Al2O3	11.00%	0.38
SiO2	50.00%	2.91
Oxide Weight		349.20
Formula Weight		349.20

Notes

This is a USA pottery frit, Ferro now calls it Frit CC263-2. It is available in small quantities at lagunaclay.com. They call it an "alkaline, alkaline earth alumina borosilicate" and say it is "a well-balanced composition without barium. Typically used as an all-fritted glossy glaze in the general range Orton cone 04-4." This is likely a major constituent in their low fire glazes.

Was formerly #CC268.

Ferro only publishes an approximate analysis as of 2008, however this one was historical (from previous sources).

It is balanced cone 02-1 clear glaze.

Related Information

Links

Materials	Frit Frits are made by melting mixes of raw materials, quenching the melt in water, grinding the pebbles into a powder. Frits have chemistries raw materials cannot.
Materials	Ferro Frit CC-263-2
Typecodes	Frit A frit is the powdered form a man-made glass. Frits are premelted, then ground to a glass. They have tightly controlled chemistries, they are available for glazes of all types.
Typecodes	Available from Laguna Clays
URLs	https://digitalfire.com/4sight/datasheets/ferropotteryfrits2008.pdf Ferro Pottery Frits 2008

Data

Co-efficient of Linear Expansion	6.79
Frit Softening Point	1650-1850F

By Tony Hansen
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