Ferro Frit 3185

Alternate Names: F3185

Description: Low melting alkali borate bonding frit for abrasives

Oxide	Analysis	Formula
Na2O	7.70%	1.00
B2O3	38.20%	4.42
SiO2	54.10%	7.25
Oxide Weight		805.19
Formula Weight		805.19

Related Information

At 1700F the fast fire frits show an important difference

These were 10g balls melted using our GBMF test, the tile they are being fired on is a grogged stoneware clay. A few of the more interesting ones here are frit 3470 lead zinc, 3185 super high boron, CC257 high barium, FR003 high alkali and F49 and FR001 opacifieds. Notice how early and vigorously some are melting. But notice 557 and 556, they aren’t doing anything - that is not by accident. These are fast-fire frits, they are designed to melt later and more quickly. This is only 1700F, since no one fires this low it makes sense that if a glaze has not started melting it will be able to pass escaping gases of decomposition. This avoids the bubbles and surface defects these cause, as 3185, CC257 and 3470 are already demonstrating. What about FR002, FR002 and 3565, they are melting and look fine? They have higher surface tension and much less contact with the body generating the gases.

Links

Materials	Fusion Frit F-245
Materials	General Frit GF-143
Materials	Ferro Frit 3226
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	Fusion Frit F-367
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	Bonding Frits These melt at very low temperatures (e.g. 500C). They are used to bond together materials that can withstand some heat (e.g. abrasives, ceramics, non-oxide ceramics, metals). And as a surface smoothing agent. The main product properties are melting temperature and thermal expansion. The powders are mixed with binders, applied and then heated up and down to create the bond.

Data

Co-efficient of Linear Expansion	6.10
Frit Melting Range (C)	1350F

By Tony Hansen
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