Heat Resistant Borosilicate Glass is made from high borosilicate material with excellent thermal stability, low expansion coefficient, and superior thermal shock resistance. Available in Borosilicate Glass 3.3 and 4.0, it supports customized sizes and thicknesses for industrial applications.
Heat Resistant Borosilicate Glass is an advanced industrial glass material developed with high borosilicate composition to achieve excellent thermal stability, low thermal expansion, and superior resistance to temperature variations. Compared with ordinary glass, it provides significantly improved heat resistance, thermal shock performance, and long-term durability under demanding working conditions.
Available in Borosilicate Glass 3.3 and Borosilicate Glass 4.0, this high-performance glass features a low coefficient of expansion, excellent optical transparency, and outstanding chemical stability. With a maximum working temperature of up to 550℃, it is suitable for applications requiring reliable performance in high temperature, rapid temperature change, and corrosive environments.
Qingdao Vatti Glass provides customized Heat Resistant Borosilicate Glass solutions with flexible dimensions, thickness options, and precision processing services. Our products are widely supplied to industrial equipment manufacturers, engineering companies, and glass distributors worldwide.
Excellent Heat Resistance
Heat Resistant Borosilicate Glass is designed for applications exposed to continuous high temperature environments. With a maximum working temperature of up to 550℃, it maintains stable mechanical strength and dimensional accuracy during long-term thermal exposure.
Its excellent thermal performance makes it suitable for industrial equipment, heating systems, inspection applications, and other environments requiring reliable heat-resistant materials.
Superior Thermal Shock Resistance
With thermal shock resistance of ≥125K, borosilicate glass can withstand rapid temperature changes while maintaining structural integrity.
This outstanding thermal stability reduces the risk of cracking caused by sudden temperature differences and improves safety and service life in demanding industrial applications.
Low Thermal Expansion Coefficient
One of the most important characteristics of Borosilicate Glass 3.3 is its extremely low thermal expansion coefficient.
The expansion coefficient reaches:
3.3±0.1 × 10⁻⁶ (20-300℃)
The low expansion property helps minimize internal thermal stress, making the glass more reliable in applications involving repeated heating and cooling cycles.
Excellent Optical Transparency
Heat Resistant Borosilicate Glass provides excellent light transmission and clear visual performance.
Light transmission:
· ≥92% for thickness ≤4mm
· ≥91% for thickness ≥5mm
This high transparency enables accurate observation and monitoring in industrial and technical applications.
Outstanding Chemical Stability
Borosilicate glass offers excellent resistance to chemical corrosion, acids, and alkalis. Its stable chemical properties allow it to maintain performance in harsh environments where ordinary glass may experience degradation.
It is suitable for applications involving chemical media, laboratory environments, and industrial processing systems.
Long Service Life and Reliability
Due to its excellent thermal stability, mechanical strength, and chemical resistance, Heat Resistant Borosilicate Glass provides reliable long-term performance.
Its durability helps reduce replacement frequency and maintenance costs, making it an ideal choice for industrial applications requiring stable operation.
Qingdao Vatti Glass provides customized manufacturing solutions based on customer drawings and application requirements.
Available processing options include:
· Customized dimensions
· Different thicknesses
· Round, rectangular, and special shapes
· Precision cutting
· Edge grinding and polishing
· Surface finishing
We support OEM projects, prototype development, and bulk production orders.
| Item | Specification |
| Product Name | Heat Resistant Borosilicate Glass |
| Material | High Borosilicate Glass |
| Glass Type | Borosilicate Glass 3.3 / 4.0 |
| Shape | Customized |
| Size | Customized dimensions |
| Thickness | 2-30mm |
| Maximum Working Temperature | ≤550℃ |
| Coefficient of Expansion (20-300℃) | 3.3±0.1 × 10⁻⁶ |
| Softening Point | 820±10℃ |
| Thermal Shock Resistance | ≥125K |
| Refractive Index (nd) | 1.47384 |
| Light Transmission | 92% (≤4mm), 91% (≥5mm) |
| Density | Approx. 2.23 g/cm³ |
| Chemical Resistance | Excellent resistance to acids and alkalis |
Industrial Equipment
Heat Resistant Borosilicate Glass is widely used in industrial equipment requiring high temperature stability, transparency, and reliable operation.
Typical applications include:
· Industrial inspection systems
· Protective observation windows
· Processing equipment
· High temperature machinery
Energy and Heating Systems
Due to its excellent thermal performance, borosilicate glass is suitable for various heating and energy-related applications.
Applications include:
· Industrial furnaces
· Boilers
· Heating systems
· Thermal processing equipment
Chemical and Laboratory Equipment
The excellent chemical stability of borosilicate glass makes it suitable for environments exposed to chemical substances.
Applications include:
· Chemical processing equipment
· Laboratory instruments
· Testing equipment
· Protective glass components
Optical and Monitoring Applications
With high transparency and stable optical properties, Heat Resistant Borosilicate Glass is widely used for applications requiring clear observation and reliable protection.
Applications include:
· Optical windows
· Sensor protection
· Monitoring systems
· High temperature viewing equipment
As an experienced industrial glass manufacturer, Qingdao Vatti Glass provides complete manufacturing solutions for Heat Resistant Borosilicate Glass.
Material Selection
We use high-quality borosilicate glass materials to ensure consistent thermal performance, optical clarity, and chemical stability.
Strict material control helps maintain reliable quality for different industrial applications.
Precision Glass Processing
According to customer requirements, we provide professional processing services including:
· Precision cutting
· Edge processing
· Grinding and polishing
· Customized finishing
Our processing capabilities allow us to produce glass products with accurate dimensions and stable performance.
OEM and Bulk Production
Qingdao Vatti Glass supports OEM cooperation, customized projects, and large-volume supply.
From sample development to mass production, we provide flexible manufacturing solutions to meet different customer requirements.
Professional Industrial Glass Manufacturer
Qingdao Vatti Glass Co., Ltd. specializes in manufacturing high-performance glass products, including borosilicate glass, quartz glass, ceramic glass, fireproof glass, and customized industrial glass solutions.
With professional production experience and advanced processing capabilities, we provide reliable glass solutions for global industrial customers.
Strict Quality Control
We implement comprehensive quality management throughout the manufacturing process, including:
· Raw material inspection
· Production monitoring
· Dimensional accuracy inspection
· Final product testing
These procedures ensure stable performance and consistent quality for every order.
Global Supply Capability
With independent import and export rights, Vatti Glass supplies glass products to customers in Europe, America, Africa, and Asia.
We provide professional communication, reliable production schedules, and efficient export services for international customers.
Qingdao Vatti Glass follows international quality management standards to ensure reliable product performance and stable supply capability.
We have passed ISO9001, CE, SGS, RoHS and other quality management system certifications.
Our production process includes strict quality control procedures such as raw material inspection, manufacturing monitoring, dimensional verification, and final product inspection.
These certification systems and quality assurance processes help ensure that Heat Resistant Borosilicate Glass meets the requirements of industrial applications where safety, durability, and consistency are essential.
To ensure product safety during international transportation, Heat Resistant Borosilicate Glass is carefully packed with protective materials.
Our packing services include:
· Protective packaging
· Customized packing solutions
· International shipping support
We provide reliable logistics solutions to ensure products arrive safely at customer locations worldwide.
What is Heat Resistant Borosilicate Glass?
Heat Resistant Borosilicate Glass is a high-performance industrial glass material with excellent heat resistance, low thermal expansion, and strong thermal shock resistance.
What temperature can borosilicate glass withstand?
High borosilicate glass can withstand working temperatures up to approximately 550℃, depending on product specifications and application conditions.
What is the difference between Borosilicate Glass 3.3 and ordinary glass?
Borosilicate Glass 3.3 has a much lower thermal expansion coefficient, providing better heat resistance, thermal shock resistance, and long-term stability compared with ordinary glass.
What is the difference between Borosilicate Glass 3.3 and Borosilicate Glass 4.0?
Both materials provide excellent thermal performance. The selection depends on specific application requirements, including temperature conditions, mechanical requirements, and processing needs.
Can you manufacture customized Heat Resistant Borosilicate Glass?
Yes. Vatti Glass provides customized sizes, thicknesses, shapes, and processing services according to customer drawings and specifications.
Do you provide OEM and bulk supply services?
Yes. We support OEM projects, distributor cooperation, and large-volume industrial supply.
High Temperature Borosilicate Glass Sheet
Designed for industrial windows, furnace observation windows, and high temperature applications.
Borosilicate Glass Sight Glass
Suitable for industrial observation systems and equipment monitoring applications.
Used for liquid level measurement and industrial gauge applications.
Provides excellent high temperature performance and optical properties for specialized environments.