Underglaze Frit
A clever powder addition to turn a stain into an underglaze
£2.99
£2.49
More than 10 in stock
SKU
D200
Underglaze frit - 100g
Method and Technical Info
If you have a stain but wish to use it as an underglaze then add 20% of the underglaze frit to the dry weight of powdered stain. Then mix the two amounts in a small container. Depending on choice of opaqueness of the end colour, dispense a small amount of the medium ‘pehatine’. We used a similar volume to stain/frit amount, and this produced a flat opaque colour.
We have only tested with the Vitraglaze mixing medium (pehatine) but our stains/frit ingredient worked brilliantly to make a wonderful creamy brush-on. It will work best on bisque but can also be used on greenware. However enjoyable the experience, don’t paint too thickly as this impedes the breathing of the clay.
See pdf attachment for the Safety Data Sheet. Chemical Composition below.
Chemical Composition
| Chemical compound | Percentage range |
| SiO₂ | 40-60 |
| Al₂O₃ | 4-10 |
| CaO | 4-10 |
| Na₂ + K₂O | 10-20 |
| ZnO | 9-12 |
| B₂O₃ | 10-20 |
See pdf attachment for the Safety Data Sheet.
Health and Safety
Although this product contains less than .01% respirable quartz/silica, it is advised to wear a mask when dispensing it as a powder.
See section 4 of the MSDS (product attachments) for further health and safety measures.
Customer Questions
Write Your Own Review