High Temperature Glass Sheet is made from high borosilicate glass 3.3, offering excellent heat resistance, optical clarity, and chemical stability. With a working temperature up to 450℃, it is widely used for industrial sight glass, optical windows, and high temperature equipment. Qingdao Vatti Glass provides customized sizes, thicknesses, and processing options.
High Temperature Glass Sheet is manufactured by Qingdao Vatti Glass using premium borosilicate glass 3.3 material, providing excellent thermal resistance, optical clarity, and chemical durability for industrial applications. With a low coefficient of thermal expansion of 3.3×10⁻⁶/℃, this heat resistant glass sheet maintains stable performance under rapid temperature changes and continuous high temperature conditions.
The borosilicate glass sheet can operate at temperatures up to 450℃ under normal working conditions, while careful handling allows temperature resistance of approximately 550℃. With light transmission above 90%, excellent acid and alkali resistance, and high dimensional stability, it is suitable for optical instruments, industrial sight glass, high temperature windows, chemical equipment, and other specialized applications.
Qingdao Vatti Glass supplies customized high temperature glass sheet solutions with flexible options for size, thickness, and surface processing. We support precision cutting, edge processing, drilling, coating, and other treatments to meet different requirements from industrial equipment manufacturers and engineering companies.
Excellent High Temperature Resistance
The high temperature glass sheet offers outstanding thermal stability with a low coefficient of thermal expansion of 3.3×10⁻⁶/℃. It can withstand rapid temperature changes and repeated heating and cooling cycles while maintaining dimensional stability, making it suitable for high temperature equipment and industrial observation applications.
Superior Optical Transparency
Manufactured from clear borosilicate glass 3.3, the glass sheet provides excellent optical clarity with light transmission up to 92% for thicknesses ≤4mm and 91% for thicknesses ≥5mm. This makes it ideal for optical instruments, inspection windows, and applications requiring clear visual observation.
Excellent Chemical Resistance
The borosilicate glass sheet provides strong resistance to acids, alkalis, and chemical corrosion. Its stable chemical properties allow reliable operation in harsh environments such as chemical processing equipment and laboratory applications.
Customized Processing Options
Qingdao Vatti Glass provides customized high temperature glass sheet solutions based on customer requirements. Available processing services include precision cutting, edge grinding, drilling, coating, semi-tempering, and printing for different industrial applications.
| Item | Specification |
| Product Name | High Temperature Glass Sheet |
| Material | High Borosilicate Glass 3.3 |
| Size | Customized dimensions |
| Thickness | 1.2-20mm (Customized thickness available) |
| Density | 2.23±0.02 g/cm³ |
| Thermal Expansion Coefficient | 3.3±0.1×10⁻⁶/℃ |
| Softening Point | 820±10℃ |
| Maximum Working Temperature | Up to 450℃ |
| Thermal Shock Resistance | ≥125K |
| Refractive Index (nd) | 1.47384 |
| Light Transmission | 92% (≤4mm), 91% (≥5mm) |
Stable Performance Under Thermal Stress
High temperature glass sheet is manufactured with a low thermal expansion coefficient, enabling excellent dimensional stability during rapid temperature changes and repeated heating and cooling cycles. This helps reduce thermal stress and improves reliability in high temperature equipment.
Long Service Life in Industrial Environments
The combination of high mechanical strength, chemical durability, and thermal resistance of borosilicate glass 3.3 provides long-lasting performance in demanding industrial conditions. It helps reduce replacement frequency and maintain stable equipment operation.
Clear Observation Performance
With high optical transparency, low distortion, and excellent light transmission, the glass sheet provides a clear view for monitoring internal processes. It is widely used for industrial sight glass, inspection windows, and optical equipment requiring reliable visual observation.
Flexible Customized Manufacturing
Qingdao Vatti Glass provides customized high temperature glass sheet solutions with different sizes, thicknesses, and processing options. This flexibility allows customers to obtain glass components suitable for specific equipment designs and application requirements.
Industrial Sight Glass
High temperature glass sheet is widely used for industrial sight glass, inspection windows, and observation ports in boilers, pressure equipment, pipelines, and processing systems. Its excellent thermal shock resistance and optical clarity allow operators to safely monitor internal conditions under high temperature environments.
Optical Instruments
Made from high borosilicate glass 3.3, the glass sheet provides high transparency, low optical distortion, and stable performance under temperature variations. It is suitable for optical windows, protective covers, and transparent components used in optical instruments and precision equipment.
High Temperature Equipment
The glass sheet is designed for furnaces, heating systems, and other high temperature equipment requiring heat resistance and dimensional stability. It helps maintain clear visibility while protecting operators from direct exposure to high-temperature environments.
Chemical Processing Equipment
With excellent resistance to acids, alkalis, and chemical corrosion, the borosilicate glass sheet is suitable for chemical reactors, laboratory equipment, and industrial systems exposed to harsh operating conditions.
Lighting Equipment
The high light transmission and heat resistance of the glass make it suitable for industrial lighting fixtures and applications requiring durable transparent components with stable optical performance.
Qingdao Vatti Glass specializes in manufacturing customized high temperature glass sheet solutions for global industrial customers. With professional glass processing capabilities and flexible production options, we support OEM projects, equipment manufacturers, and engineering companies with reliable glass components.
Based on different application requirements, we provide customized solutions including:
· Customized dimensions and thickness tolerances
· Precision cutting according to drawings
· Edge grinding and polishing
· Drilling holes and special machining
· Surface coating treatment
· Semi-tempering processing
· Silk screen printing
Our manufacturing capability enables us to produce high temperature glass sheets for optical instruments, industrial sight glass, chemical equipment, lighting systems, and other specialized applications. Each product is processed under strict quality control to ensure dimensional accuracy, stable performance, and reliable service life.
Professional Glass Manufacturer
Qingdao Vatti Glass Co., Ltd. is an experienced manufacturer and supplier of industrial glass products, specializing in borosilicate glass, tempered glass, laminated glass, solar glass, ceramic glass, and quartz glass. We provide reliable glass solutions for industrial equipment manufacturers, engineering companies, and global distributors.
Strict Quality Control
We implement strict quality management throughout the production process, including raw material inspection, dimensional measurement, thickness checking, surface quality inspection, and performance testing. These procedures help ensure consistent quality, accurate specifications, and reliable performance for industrial applications.
Flexible Custom Supply Capability
With independent import and export rights and professional manufacturing experience, Vatti Glass provides flexible glass solutions based on different customer requirements, including customized sizes, processing options, and application-specific designs.
Global Export Experience
Our glass products have been supplied to customers across Europe, America, Africa, and Asia. With international export experience and reliable packaging and shipping processes, we support long-term cooperation with customers worldwide.
To meet different project requirements, High Temperature Glass Sheet can be supplied with various processing options, including:
· Pre-cut formats based on customer drawings
· Edge grinding and polishing
· Precision drilling
· Surface coating treatment
· Semi-tempering processing
· Silk screen printing
These processing capabilities allow Vatti Glass to provide customized glass components for optical instruments, industrial sight glass, high temperature equipment, and other specialized applications.
Packing
To ensure safe delivery of High Temperature Glass Sheet, each glass piece is processed with protective film and carefully packed with paper or expandable polyethylene pearl cotton (EPE). The products are securely placed in strong seaworthy wooden crates to minimize the risk of scratches, impact, and damage during long-distance ocean and land transportation.
Shipping
Vatti Glass supports international shipment according to customer requirements.
· Trade Term: FOB Qingdao Port
· Payment Terms: 30% deposit and 70% balance before shipment
· Sample orders and small quantities can be shipped by DHL, TNT, FedEx, EMS, or UPS
· Export packaging suitable for ocean and land transportation
1.What material is used for High Temperature Glass Sheet?
High Temperature Glass Sheet is manufactured from high borosilicate glass 3.3, which features a low thermal expansion coefficient, excellent thermal shock resistance, high transparency, and strong chemical durability. It is suitable for industrial applications requiring stable performance under high temperature conditions.
2.What is the maximum working temperature of High Temperature Glass Sheet?
The standard maximum working temperature of the high temperature glass sheet is up to 450℃ under normal operating conditions. With careful handling and proper application conditions, the temperature resistance can reach approximately 550℃.
3.What are the main applications of high temperature glass sheet?
High temperature glass sheet is widely used in industrial sight glass, optical instruments, furnace observation windows, chemical equipment, lighting systems, laboratory equipment, and other applications requiring heat resistance and optical clarity.
4.Can Vatti Glass provide customized sizes and thicknesses?
Yes. Qingdao Vatti Glass provides customized high temperature glass sheet solutions according to customer requirements. We can produce different sizes, thicknesses, and shapes, as well as provide additional processing services for specific applications.
5.What processing options are available for borosilicate glass sheet?
Vatti Glass supports various processing options, including precision cutting, edge grinding and polishing, drilling, surface coating, semi-tempering, and silk screen printing to meet different industrial requirements.
6.What is the difference between high temperature glass sheet and ordinary glass?
Compared with ordinary glass, high temperature glass sheet made from borosilicate glass 3.3 has a lower thermal expansion coefficient, better thermal shock resistance, higher temperature resistance, and stronger chemical stability, making it more suitable for demanding industrial environments.
7.Can high temperature glass sheet be used as industrial sight glass?
Yes. Due to its excellent transparency, thermal stability, and corrosion resistance, high temperature glass sheet is commonly used for industrial sight glass, observation windows, and inspection ports in equipment such as boilers, furnaces, and processing systems.
8.Does Vatti Glass support OEM and bulk orders?
Yes. Qingdao Vatti Glass supports OEM manufacturing and bulk supply for industrial customers, equipment manufacturers, engineering companies, and distributors. We provide customized production based on drawings, specifications, and application requirements.