Vetrosa no longer poses any problems for third firing production. For this reason we offer a whole variety of different vetrosa for different applications.
Usually transparent vetrosa is used, but opaque and matt types are also popular, and other types are effective for specific applications like relief or polishing.
Vetrosa application
Normally vetrosa is applied dry without a bonding agent on vitrified surfaces. The best place to make this kind of application is as near as possible to the kiln entrance.
If this is not possible, an adhesive film can be printed beneath the Vetrosa to fix it in place. Vetrosa can be applied over the entire tile surface or only to portions of it. It is normally applied by a special dry application machine, which works with screens from 8 to 21 threads/cm2. For laboratory tests, vetrosa is applied using a polyester or nylon screen from 10 to 32 threads/cm2 .
Third Firing
| Code |
Description |
Temp.ºC |
Threads/cm2 N. |
Lead |
Lead-free |
CoE. |
| Transparent low temperature Vetrosa |
| 202/4H4 |
transparent low temperature |
800ºC |
10-21# |
|
* |
60 |
| Metallic crushed frits low temperature |
| 500/6H2 |
silver |
800ºC |
10-21# |
* |
|
|
| 500/6H3 |
green |
800ºC |
10-21# |
* |
|
|
| 500/6H4 |
blue |
800ºC |
10-21# |
* |
|
|
| 500/6H5 |
gold |
800ºC |
10-21# |
* |
|
|
| 500/6G9 |
pearl-colored |
800ºC |
10-21# |
* |
|
|
| Transparent vetrosa |
| TF 00602/90 |
fine particle size |
1000ºC |
10-21# |
|
* |
57 |
| 1103988 |
low c.o.e. |
1000ºC |
10-21# |
|
* |
49 |
| Transparent vetrosa for polishing |
| TF 30151/90 |
fine particle size |
960-1000ºC |
|
|
* |
62 |
| Silky white matt crushed frit |
| TF 30275/40 |
matt crushed frit |
960-1000ºC |
10-21# |
* |
|
62 |
| TF 30273/90 |
silky white antiacid matt crushed frit |
960-1000ºC |
10-21# |
|
* |
53 |
| Matt transparent crushed frit |
| 1107270 |
matt transparent |
960-1000ºC |
10-21# |
|
* |
56 |
| White glossy crushed frit |
| TF 00171/40 |
|
960-1000ºC |
10-21# |
* |
|
61 |
| Relief white crushed frit |
| TF 23053 |
relief white hard |
960-1000ºC |
10-21# |
|
* |
56 |
| Vetrosa paillettes |
| TF 00610/90 |
gold points |
960-1000ºC |
10-21# |
|
* |
57 |
| TF 00620/90 |
silver points |
960-1000ºC |
10-21# |
|
* |
57 |
| TF 00640/90 |
black points |
960-1000ºC |
10-21# |
|
* |
57 |
CoE. = linear expansion coefficient 10-7 1/K (50-400ºC)
Direct firing
| Code |
Description |
Temp. ºC |
Threads/cm2 N. |
Lead |
Lead-free |
CoE. |
| Transparent cetrosa for monoporosa direct firing |
| TF 50600/90 |
fine particle size |
960-1000ºC |
10-21# |
|
* |
54 |
| TF 50600/45 |
coarse particle size |
960-1000ºC |
failing-a |
|
* |
54 |
| White glossy chrused frit for monoporosa dirent firing |
| TF 50075 |
white glossy |
1000ºC |
10-21# |
|
* |
58 |
| Matt vetrosa for direct firing |
| TF 50020 |
matt |
1000ºC |
10-21# |
|
* |
49 |
| Rustic matt crushed frit |
| TF 50072 |
rustic matt |
1000ºC |
10-21# |
|
* |
61 |
| Relief crushed frit |
| TF 50098 |
white hard |
1100-1120ºC |
10-21# |
|
* |
52 |
| Medium |
| TF 292 |
to mix fine crushed frit |
|
|
|
|
|
CoE. = linear expansion coefficient 10-7 1/K (50-400ºC)