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Quick Details

  • Place of Origin: Guangdong, China (Mainland)
  • Brand Name: bolipai
  • Model Number: BLP-BG-001
  • Function: Heat Absorbing Glass, Heat Reflective Glass
  • Shape: Flat
  • Structure: Solid
  • Technique: Clear Glass, Tempered Glass
  • Type: Sheet Glass
  • density: 2.23±0.02g/CM3
  • Knoop Hardness: 480
  • Bending strength: 24Mpa
  • maxi working temperature: 600℃
  • Transmittance: (5mm):>92%
  • Softening Point: 830±10℃
  • Strain Point: 521±10℃

Packaging & Delivery

Packaging Details crate ,with paper between two pieces ,or your demand Powder or paper interleaved pieces, easy-dismantled wooden crates package, easily storage,safety,suitable for distance sea and inland transportation.Fastness, burliness, easy and security to put and fetch pieces, every box is loaded around 2.5 tons. It is applicable in the area of loading and discharge equipment imperfect, manpower charges lower.Beautiful appearance, opening convenience, saving timber,
Delivery Time 25-30 days after deposit delivery


borosilicate glass 4.0 for fireproof door and windows
1. Excellent visual effect
2. Powerful effect on Fire
3. High resista

borosilicate glass 4.0 for fireproof door and windows


Chemical composition of borosilicate glass












1. Features

Temperature resistance:long working temperature ≤ 550 ° C, short time working ≤ 600 ° C

Light transmission rate:95% up

 Thermal Shock Resistance:300 K

Thickness: 2-25mm 
Color: clear, red, green, blue, and so on.

High light transmission;

Various thicknesses for you to choose;

Wide optical application.


2. Advantages:

1.Raw material: Borosilicate glass, Pyrex, Borofloat,  Optical glass. Crystal glass

2. Processing: by Molding, Grinding, Polishing

3. Surface quality: optical surface quality and well controlled tolerance

4. Inside quality: clear and transparent, no mold marks, no inside bubble and dirts,

5. Function: Guide of the light beams e.g. Fresnel lens, Plano lens, Bi convex lens, Bi concave lens, Prism, Cylindrical lens, Ball lens, Spherical lens, Aspheric lens, Meniscus lens

optical lens,lens

widely used in high-temperature observation windows, lighting (high-power lighting panel), appliances, laboratory containers, solar, lighting and other fields.



High temperature load capacity:


- up to 550°C permanent load


- up to 600°C temporarily (< 10h)


Low thermal coefficient of expansion


Thermal coefficient matches silicon


(anodic bonding)


High thermal shock resistance


Clear, practically colorless appearance


Low fluorescence


High UV-Transmission


High chemical resistance against acids,


bases and organic substances


Low alkali content in the glass composition


Low specific weight






Substrates for dielectric coatings
Lighting applications
Optical filter coating substrates
Wafer substrates
Anodic bonding applications
Environmental technology
Harsh environments
Neutron absorbers


3D Printer Glass
Measurement and sensor technology



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