Ferro Frit 3270

Description: Borosilicate cone 06-04 frit for cobalt colors

Oxide	Analysis	Formula
CaO	8.50%	0.46
K2O	5.40%	0.17
Na2O	7.40%	0.36
B2O3	22.61%	0.99
Al2O3	8.30%	0.25
SiO2	47.79%	2.42
Oxide Weight		304.70
Formula Weight		304.70

Notes

This is a USA pottery frit, Ferro now calls it Frit 3270-2.
It has higher boron, lower alkali and much higher CaO than Frit 3269. The alkali is still significant enough to drive the thermal expansion fairly high.

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	Pemco Frit P-802
Materials	Hommel Frit 378A
Materials	Frit V-3
Materials	Hommel Frit 378
Materials	Ferro Frit 3278
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.
URLs	https://digitalfire.com/4sight/datasheets/ferropotteryfrits2008.pdf Ferro Pottery Frits 2008

Data

Co-efficient of Linear Expansion	8.79
Frit Melting Range (C)	1500-1600F

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