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Frit A 3021

Alternate Names: Frit A3021

Oxide Analysis Formula
CaO 10.00% 1.00
ZrO2 3.00% 0.14
Al2O3 10.00% 0.55
SiO2 51.00% 4.76
B2O3 26.00% 2.10
Oxide Weight 561.00
Formula Weight 561.00

Related Information

A frit manufacturer that used to publish chemistry

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).


Materials Frit
Typecodes Frit
Reimbold & Strick Frit chart with chemistry


Co-efficient of Linear Expansion42 X 10-7 (20-400C)
Frit Softening Point710C
Glass Transition Temperature650C

By Tony Hansen

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