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Frit A 2120

Alternate Names: Frit A 2120p, Frit A2120p, Fritte A2120P, Frit A2120

Description: Reimbold & Strick high expansion alkali frit without boron

Oxide Analysis Formula
CaO 7.00% 0.23
Na2O 24.00% 0.73
Al2O3 4.00% 0.07
SiO2 59.00% 1.84
K2O 2.00% 0.04
Oxide Weight 180.08
Formula Weight 180.08

Related Information

A frit manufacturer that used to publish chemistry

Tap picture for full size and resolution

I was impressed with this frit company, Reimbold & Strick. Their frit data was educational, by studying the chemistry of their matte frits, for example, you could see the various mechanisms that produce the effect. But, it is no longer available. However, with a little determination you could likely find the pages at the internet archive (see link below).

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.
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 http://www.reimbold-und-strick.de/images/pdf/keramisch.pdf
Reimbold & Strick Frit chart with chemistry

Data

Co-efficient of Linear Expansion 145 x 10-7 (20-400C)
Frit Softening Point 480C
Glass Transition Temperature 330C
By Tony Hansen
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