0.5mm SCHOTT BF33 High Borosilicate Glass Substrate for Lab Use

Key Features:

• Ultra-Thin 0.5mm Profile: The glass sheet is manufactured with a precise 0.5mm thickness, making it ideal for compact and lightweight applications where dimensional accuracy and minimal bulk are essential.

• Premium SCHOTT BF33 Material: Crafted from original SCHOTT BF33 borosilicate glass, this material offers exceptional chemical resistance, high thermal stability, and excellent optical clarity, ensuring long-term reliability in harsh environments.

• High Thermal Resistance: With a softening point of approximately 820°C and a low coefficient of thermal expansion (3.3 × 10⁻⁶ /K), BF33 glass maintains stability under rapid temperature changes, making it suitable for thermal processing and laboratory conditions.

• Excellent Optical Clarity: BF33 glass has high light transmittance (up to 92% in visible range) and low autofluorescence, making it perfect for optical windows, sensors, and analytical instruments that require accurate light transmission and minimal distortion.

• Strong Chemical Durability: The glass offers outstanding resistance to water, acids, alkalis, and organic solvents, allowing it to be used in demanding chemical and biomedical environments without degradation or surface damage.

• High Surface Quality & Precision Machining: Our BF33 glass undergoes precision cutting, edge polishing, and quality control to meet stringent industry standards. Optional customization includes drilled holes, edge grinding, and surface coating for specific application needs.

• Versatile Applications: Widely used in scientific research, microfluidic devices, high-end displays, and analytical instruments, this glass supports a wide range of industries from electronics and optoelectronics to medical diagnostics.

Customized Option:

• Available Thickness: Ranging from 0.2 mm to 15 mm, depending on the insulation requirements and specific applications.

• Size & Shape: Supports special-shaped cutting to meet diverse needs. Customizes as per drawing.

• Cutting Option: CNC Cutting/Water jet Cutting/Diamond Blade Cutting

• Edge Options: Polished Edge/Safety Edge/Beveled Edge/Smooth Edge/2.5D Edge/Pencil Edge/Straight Edge

• Coating Options: Anti-Reflective (AR) Coating/Anti-Fingerprint (AF) Coating/Scratch-Resistant Coating/Indium Tin Oxide(ITO) Coating or Anti-Glare (AG)Coating

Materials: SCHOTT BF33 Borosilicate Glass

Shape: Round 

Thickness: 0.5mmT

Diameter: 100mm

Edge Work: Safety edge by CNC machine

Density: 2.23 g/cm³

Thermal Expansion Coefficient: 3.3 × 10⁻⁶ /K

Softening Point: ~821°C

Annealing Point: ~560°C

Strain Point: ~518°C

Refractive Index (nd): 1.47

Young's Modulus: ~64 GPa

Chemical Resistance: High

Flatness: ≤λ/4 (customizable)

Poisson's Ratio: 0.2

Hardness (Mohs): ~6.5

Surface Roughness (Ra): <10 nm (optically polished)

Electrical Resistivity: 10¹³–10¹⁴ Ω·cm

Birefringence: Very low

Surface Quality: 60/40, better options available

Visible Light Transmission: ~92% @ Visible Spectrum (400–700nm)

UV Cut-off Wavelength: ~300 nm

Operating Temperature Range: Suitable for -30°C to 250°C.

Thickness Tolerances:± 0.05mm

Dimensional Tolerances:±0.5mm for large size; ±0.1mm for small size.

• Laboratory & Scientific Equipment: With excellent thermal stability and chemical resistance, BF33 glass is ideal for lab slides, viewports, microfluidic chips, and container covers used in biological, materials, and physical science research.

• Optical Windows & Laser Systems: The high transmittance and minimal birefringence of BF33 make it an excellent choice for optical windows, IR filters, and laser system front panels—ensuring clean and accurate light transmission.

• Display & Sensor Modules: Used in sensor windows, display covers, and camera module glass, this material supports high optical clarity and structural reliability in compact electronic devices.

• Medical Imaging & Diagnostic Devices: Employed in medical analyzers, diagnostic windows, and sample imaging devices, BF33 offers excellent optical clarity, anti-fouling surface, and chemical resistance for hygienic environments.

• AR/AF Coating Substrates: Due to its excellent surface quality and optical uniformity, BF33 is widely used as a substrate for AR/AF coatings in aerospace, defense optics, and high-end display applications.