Frits are produced from various combinations of raw materials that
are fused into a vitreous of semi-vitreous substance. Depending on
the firing temperature and the desired results, frits may be used
as a major component or a minor additive in glaze production.
The use of frits also allows for the incorporation of certain raw
materials in the creation of glazes. Some materials, which alone
could be hazardous, become safer components in a fired glaze.
Recognized benefits of frit include the ability to fire at a lower
temperature, the creation of a homogenous quality and a more
consistent result.
Frits are glaze materials which have been melted, cooled and ground
into a powder which is then added to a glaze formula for the
purpose of rendering insoluble any soluble material present.
| PRODUCT |
DESCRIPTION |
MELT
ING RANGE(ºF) |
| |
| 841925 |
Crackle frit, clear and used from cone 06
to cone 03. Can be used as either a stand alone or as an additive
to glaze. |
1400ºF |
| 841954 |
Calcium borate source used with other frits
for low cost pottery glazes from cone 06 to cone
01. |
1450ºF |
| 8413195 |
Very fluid, clear cone 06
frit. |
1500ºF |
| 8419311 |
Used with other frits and raw materials at
cone 06 to cone 01. |
1600ºF |
| 8419626 |
Barium source used for bright colors at
cone 05 to cone 03. |
1500ºF |
| 8419830 |
Similar to 841954 above but melts at a
lower temperature. |
1400ºF |
| 8413110 |
A high calcium/sodium, low alumina frit for
cone 06. Often used in crystals glazes. High
expansion. |
1600ºF |
| 8413292 |
A balanced frit to be used in glazes fron
Cone1 to Cone 4. |
LEAD BEARING FERRO FRITS
It is important to note that the frits listed below contain lead,
which is known to be a health hazard- both in its raw state and on
fired ware. We do not recommend the use of lead bearing frits on
any product that comes in contact with food or drink. It is the
user's responsibility to test the fired ware to determine that it
complies with FDA standards. always use approved respirators and
gloves when handling lead frits.
| PRODUCT |
DESCRIPTION |
MELT
ING RANGE(ºF) |
| |
| 8419963 |
Used from cone 07 to cone 01. Contains no
zinc. 30% PbO. |
1400ºF |
| 8419983 |
Used as a strong flux. 60% PbO. Alumina
free. |
1000ºF |
| 8413532 |
27% PbO. Balanced all fritted clear. Cone
06. |
1450ºF |
| 84199349 |
High temperature frit used at cone 4 to
cone 4. 16% PbO. |
1600ºF |
| 84199723 |
Lead silicate at 67% PbO- used in artware
and tile glazes from cone 06 to cone 03. |
1350ºF |
| 84199742 |
31% PbO. Balanced all fritted clear. Cone
06. |
1500ºF |
****************************************************************
A CROSS REFERENCE LIST OF COMPARABLE
FRITS*
| Marjon# |
Pemco |
Ferro |
Marjon# |
Pemco |
Ferro |
| 841925 |
P-
25 |
3269 |
8419963 |
Pb-
63 |
3417 |
| 841954 |
P-
54 |
3134 |
8419983 |
Pb-
83 |
3419 |
| 8413195 |
|
3195 |
8413532 |
Pb-
IK-75 |
3532 |
| 8419311 |
P-
311 |
3124 |
84199349 |
Pb-
349 |
3565 |
| 9419626 |
P-
626 |
3289 |
84199723 |
Pb-
723 |
3403 |
| 8419830 |
P-
830 |
3278 |
84199742 |
Pb-
742 |
3493 |
| 8413110 |
|
3110 |
*Since there may be a minor variance in the comparable frit you
select, be sure to test the frit carefully before using in
production.
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