Borosilicate Glass Frit for Ceramics
CAS Number: 65997-17-3
Borosilicate glass frit is a pre-fused glass powder used in ceramic glazes, enamel coatings, and electronic packaging glass seals. The B2O3 component lowers the glass transition temperature and thermal expansion coefficient compared to soda-lime silicate, providing chemical durability and thermal shock resistance. Used across tile, tableware, and technical ceramic glaze applications requiring reliable mid-fire to high-fire properties.
Technical Specifications
| appearance | White to off-white powder or granules |
| purity (%) | ≥99 |
| B2O3 content (%) | 10–20 |
| SiO2 content (%) | 60–75 |
| melting range (°C) | 800–1100 |
Applications
- Base frit for mid-fire and high-fire ceramic glazes
- Glaze component for chemical-resistant laboratory ceramics
- Enamel frit for metal and glass decorative coatings
- Sealing glass for electronic components and sensors
- Optical glass component in specialty glasses
Key Features
- Low CTE provides good thermal shock resistance in ceramic glazes
- High chemical durability for acid-resistant and dishwasher-safe ceramics
- Adjustable B2O3 content allows melting point customization
- Lead-free compositions available for food-safe applications
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CAS Number
65997-17-3
Category
Ceramic / Glass AdditivesAvailability
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