High borosilicate glass, because its linear thermal expansion coefficient is (3.3±0.1)×10-6/K, is also called "borosilicate glass 3.3". It is the special glass material with low expansion rate,high temperature resistance, high strength, high transparency, high light transmittance and high chemical stability.
It has excellent performance and is widely evaluated in solar energy, chemical industry, pharmaceutical packaging, electric light sources, technology jewelry and other industries.

Product Name | Heat Resistance High Borosilicate Glass 3.3 |
Thickness | 2-19mm |
Temperature resistance | 650ºC |
Color | transparent clear |
Transmittance | 92% |
Density | 2.23 g/cm3 |
Morris hardness | 7 |
Composition content | Boron: 12.5~13.5%, silicon: 78~80% |
Shape | Round, Square with holes, uncommon shape etc. |
Modulus of elasticity | 63·103N·mm-2 |
Poisson's ratio | 0.18 |
Tensile strength | 4.8x107pa(N/M2) |
Compressive strength | (0-300) 3.3±0.1×10-6K-1 |
Thermal conductivity | 1.2W·m-1·k-1 |
Annealing point | 560°C |
Softening point | 820±10°C |
Electrical resistivity | >1018 Ωm |
Dielectric constant | 4.6 1 MHz, 25 |
Water resistance | ISO719 HGB Level 1 |
Acid resistance | ISO195 HGB Level 1 |
Alkali resistance | ISO695 HGB Level 2 |

2). Environmental engineering and chemical engineering (Lining layer of repellence, autoclave of chemical reaction and safety spectacles);
3). Lighting (spotlight and protective glass for jumbo power of floodlight);
4). Power regeneration by solar energy (solar cell base plate);
5). Fine instruments (optical filter);
6). Semi-conductor technology (LCD disc, display glass);
7). Iatrology and bio-engineering;
8). Safety protection (bullet proof glass)Our professionally trained warehouse staff ensures that your glass is safely loaded so that it reaches its destination in the same perfect condition in which it left our production facility. We are constantly evolving our packing and loading techniques to ensure easier off-loading, minimal breakage, and other safeguards to combat seasonal changes in climate.
1.Interlay paper between two sheets
2.Seaworthy wooden crates



Company advantage
1. Delivery on time.
2. Considerable after-sale service.
3. OEM Service/Customer design is welcome.
4. Sample time is about 3-7 days.
5. Size and thickness can be as requirements in commonly, that is flexible.
6. Pass the international Certificate, CE, EN12150, ISO9001:2008, CCC, SGS, GB.

Our factory founded in 2005, we have been designing our products to meet the specific needs of our customers.
Our strength lies in flexible engineering, consistent high-quality products, and our service, in order to achieve the quality for our customers, we always promise that we use advanced machinery and equipment.
As a glass deep processing company, we are proud of our high quality work in the following areas: precision cutting, edging, water jet cutting,curved, screen printing and printing, driling holes, tempering, etc. we look forward to working with you to help you succeed in your market.
If you have the demands about glass or mirrors,please contact with us.We will quote you the best prices!
Glad to service for you in the future~.