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 |
| 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.