Glass Industry
Feldspar solutions enhancing quality and performance in glass production
Feldspar is used as a fluxing agent in glass production, enhancing transparency and regulating the viscosity of molten glass. At Straton, we provide high-quality feldspar products with optimum chemical composition for the glass industry.

Feldspar is used as a fluxing agent in glass production, enhancing transparency and regulating the viscosity of molten glass. At Straton, we provide high-quality feldspar products with optimum chemical composition for the glass industry.
Feldspar in Glass Industry
In glass production, feldspar serves as an important fluxing agent. As a source of alkali oxides (Na₂O and K₂O) and alumina (Al₂O₃), feldspar reduces the viscosity of the glass melt and lowers the melting temperature.
The main benefits of using feldspar in glass production are:
- Saves energy by lowering the melting temperature
- Improves glass fluidity, allowing easier shaping
- Adds stability to the glass body
- Enhances the transparency and brightness of glass
- Improves chemical resistance, increasing durability
Straton provides high-quality feldspar products with precisely controlled chemical composition for the glass industry. Our products maintain low iron oxide (Fe₂O₃) content to prevent unwanted color formation in glass products.
Key Benefits

Technical Support
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Flat Glass Applications
Flat glass production is of great importance for various applications such as architectural glass, windows, automotive glass, and furniture glass. Feldspar is a critical component in flat glass production and typically constitutes 10-15% of the glass batch.
In flat glass production, feldspar provides the following advantages:
- Excellent optical properties and high transparency
- Resistance to thermal shocks due to low expansion coefficient
- Flawless surface quality and homogeneity
- Reduction of defect rates in the production process
Straton's sodium and potassium feldspar products are ideal raw materials for flat glass manufacturers and enable the production of high-quality glass products.
Key Benefits

Technical Support
Contact our technical team for detailed information about these products.
Glass Packaging Applications
Glass packaging (bottles, jars, etc.) is widely used in the food and beverage industry. Feldspar is an important component in glass packaging production that increases the chemical resistance and mechanical strength of the glass.
Advantages of using feldspar in glass packaging:
- Longer shelf life due to improved chemical resistance
- Increased impact and pressure resistance
- Ability to produce lighter yet stronger glass products
- Safe contact surface for beverages and food products
Straton supports the production of superior quality and food-safe glass packaging by offering specialized feldspar products for glass packaging manufacturers.
Key Benefits

Technical Support
Contact our technical team for detailed information about these products.
Discover More
Visit our other pages to learn more about the application areas of Straton's feldspar products.