Manufactured from premium fused quartz, our quartz glass windows provide exceptional optical performance, thermal stability, and durability. We offer standard and custom sizes, precision machining, and OEM solutions for a wide range of industrial and optical applications.
Vatti Glass manufactures Fused Silica Quartz Glass Plates using high-purity natural quartz to deliver exceptional optical clarity, thermal stability, and chemical resistance. Designed for demanding industrial environments, our quartz glass plates provide reliable performance in semiconductor manufacturing, optical instruments, laboratory equipment, UV systems, laser technology, and high-temperature processing applications.
With excellent UV-to-IR transmission, an extremely low thermal expansion coefficient, and outstanding resistance to thermal shock, fused silica quartz glass maintains stable performance even under continuous high-temperature conditions. Whether used as optical windows, substrates, protective plates, or precision components, it offers long service life and dependable performance in critical applications.
Available in thicknesses from 0.1 mm to 100 mm, our quartz glass plates can be fully customized in size, shape, surface finish, edge treatment, and machining according to customer drawings or samples. From prototype development to large-scale production, Vatti Glass provides precision manufacturing solutions tailored to your project requirements.
· Manufactured from high-purity fused silica for superior optical performance
· Excellent light transmission from ultraviolet to infrared wavelengths
· Visible light transmission exceeding 93%
· Continuous operating temperature up to 1100°C
· Softening point approximately 1750°C
· Outstanding thermal shock resistance and dimensional stability
· Excellent resistance to acids and most corrosive chemicals
· Low thermal expansion for precision optical applications
· Bubble-free surface with high optical clarity
· Available in custom sizes, thicknesses, and machining configurations
· OEM & ODM manufacturing supported
· Suitable for both prototype and mass production
Exceptional Material Performance for Demanding Industrial Applications
Manufactured from high-purity fused silica, Vatti Glass Fused Silica Quartz Glass Plates combine outstanding optical performance, excellent thermal stability, superior chemical resistance, and long-term durability. These unique material characteristics make fused silica one of the preferred materials for optical systems, semiconductor equipment, laboratory instruments, and high-temperature industrial applications.
High Optical Transmission
Fused silica quartz glass offers exceptional optical transmission across ultraviolet (UV), visible, and infrared (IR) wavelengths. With visible light transmission exceeding 93%, it provides excellent clarity while minimizing optical distortion and energy loss.
Its superior UV transmission makes it particularly suitable for ultraviolet sterilization systems, analytical instruments, laser equipment, optical windows, precision lenses, and scientific research applications where consistent optical performance is essential.
High Temperature Resistance
Designed for extreme thermal environments, fused silica quartz glass maintains excellent mechanical stability at elevated temperatures. With a softening point of approximately 1750°C and a recommended continuous operating temperature of up to 1100°C, it remains dimensionally stable during prolonged exposure to heat.
Its outstanding heat resistance makes it an ideal material for furnace observation windows, semiconductor processing equipment, laboratory heating systems, and other applications requiring reliable performance under high-temperature conditions.
Outstanding Chemical Resistance
Fused silica exhibits exceptional resistance to most acids, solvents, and corrosive chemicals, with the exception of hydrofluoric acid. Compared with conventional engineering materials, it provides superior chemical stability even under elevated temperatures, helping extend component life and reduce maintenance requirements.
This outstanding corrosion resistance makes fused silica quartz glass widely used in chemical processing, laboratory equipment, semiconductor manufacturing, and environmental monitoring systems.
Excellent Thermal Stability
One of the most significant advantages of fused silica is its extremely low coefficient of thermal expansion. This property minimizes thermal stress during rapid heating and cooling cycles, allowing the material to withstand sudden temperature fluctuations without cracking or deformation.
Even after heating to approximately 1100°C, fused silica quartz glass can tolerate rapid cooling far better than conventional glass materials, making it highly reliable for demanding thermal cycling applications.
High Purity Material
Vatti Glass manufactures fused silica quartz glass using carefully selected natural quartz with controlled impurity levels of 10, 20, or 100 PPM, ensuring outstanding optical quality, electrical insulation, and material consistency.
The high-purity composition reduces contamination risks in precision manufacturing processes and supports stable performance in semiconductor, photonics, laboratory, and high-tech industrial applications.
Technical Specifications of Fused Silica Quartz Glass Plate
Manufactured with high-purity fused silica, our quartz glass plates offer excellent dimensional accuracy, consistent material properties, and reliable performance in demanding industrial applications. Each product is inspected to ensure outstanding optical quality, thermal stability, and machining precision.
| Property | Specification |
| Product Name | Fused Silica Quartz Glass Plate |
| Material | High-Purity Fused Silica (Natural Quartz) |
| Purity Grade | 10 / 20 / 100 PPM |
| Appearance | Transparent / Colorless |
| Surface Quality | Bubble-Free, High Optical Clarity |
| Thickness | 0.1 mm – 100 mm |
| Size | Customized |
| Shape | Square, Rectangle, Round or Custom |
| Density | 2.20 g/cm³ |
| Mohs Hardness | 5.5 – 5.7 |
| Tensile Strength | 4.8 × 10⁷ Pa |
| Softening Point | 1750°C |
| Annealing Point | 1215°C |
| Continuous Working Temperature | Up to 1100°C |
| Deformation Temperature | 1120°C |
| Thermal Expansion Coefficient (20–350°C) | 5.5 × 10⁻⁷ /°C |
| Thermal Conductivity (20°C) | 1.4 W/m·K |
| Specific Heat (20°C) | 670 J/kg·K |
| Optical Transmission | UV, Visible & IR |
| Visible Light Transmission | ＞93% |
To meet different industrial requirements, Vatti Glass supplies fused silica quartz glass plates in a wide range of dimensions and thicknesses.
Thickness Options
· 0.1 mm – 100 mm
· Ultra-thin precision quartz sheets
· Standard industrial thicknesses
· Heavy-duty thick quartz plates
Custom Sizes
· Small precision components
· Medium-sized optical plates
· Large industrial quartz plates
· Drawing-based dimensions
· Sample-based production
Custom dimensions are available with tight machining tolerances according to your application requirements.
Our precision processing capabilities ensure excellent optical quality and safe installation for various industrial applications.
Surface Finish Options
· Optical polished
· Fine polished
· Ground surface
· Fire polished
· Precision finished
Edge Processing
· Flat edge
· Beveled edge
· Chamfered edge
· Rounded corner
· CNC machined edge
Each component is carefully inspected to ensure smooth surfaces, clean edges, and excellent dimensional consistency.
Every Fused Silica Quartz Glass Plate is manufactured under strict quality control procedures to ensure reliable performance and consistent quality.
Our inspection process includes:
· Raw material inspection
· Dimensional measurement
· Thickness verification
· Surface quality inspection
· Bubble and inclusion inspection
· Optical appearance inspection
· Packaging protection before shipment
This comprehensive quality management system helps ensure that every quartz glass plate meets demanding industrial standards before delivery.
With extensive manufacturing experience, we supply precision quartz glass windows to customers across a wide range of high-tech and industrial sectors. Our products are manufactured to meet the demanding requirements of each industry.
Semiconductor Manufacturing
High-purity quartz components are essential for semiconductor fabrication processes. Our quartz glass windows are widely used in wafer production, diffusion furnaces, etching equipment, and semiconductor inspection systems.
Photovoltaic Industry
Solar cell manufacturing requires materials capable of withstanding high processing temperatures while maintaining dimensional stability. Quartz glass windows support reliable production in photovoltaic equipment and thermal processing systems.
Laboratory & Research
Research laboratories and universities require precision optical components for scientific analysis and experimental equipment. Our quartz glass windows deliver consistent optical performance and excellent chemical resistance for laboratory applications.
Medical Equipment
Medical and life science equipment often utilizes quartz glass windows in UV sterilization systems, diagnostic instruments, and analytical devices where high optical purity and long-term reliability are critical.
Aerospace & Defense
Aerospace applications demand materials capable of performing under extreme temperatures and harsh operating environments. Precision quartz glass windows provide dependable optical performance for specialized aerospace systems.
Electronics Manufacturing
Quartz glass windows are used in electronic manufacturing equipment that requires clean processing environments, thermal stability, and accurate optical monitoring throughout production.
Chemical Processing Industry
Chemical plants utilize quartz viewing windows for process observation in corrosive and high-temperature environments where conventional glass materials may fail.
Optical & Photonics Industry
Manufacturers of optical instruments, imaging equipment, and photonic systems rely on precision quartz glass windows for superior light transmission, dimensional accuracy, and stable optical performance.
In addition to quartz glass windows, we manufacture a wide range of high-purity fused quartz products for industrial, semiconductor, optical, and laboratory applications. Our product portfolio includes quartz glass plate, quartz glass window, quartz glass observation windows, quartz glass window, and other precision-machined quartz components. All products can be manufactured according to standard specifications or customized based on customer drawings and technical requirements, providing reliable solutions for high-temperature, optical, and precision engineering applications.
Looking for high-quality quartz glass windows for your application? Whether you need standard products or fully customized components, our experienced team is ready to provide professional technical support and competitive solutions.
Contact us today to discuss your project, request a quotation, or receive a free consultation. We will respond promptly with product recommendations, pricing, and delivery information based on your specific requirements.