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Borosilicate Glass

Borosilicate glass is a low-expansion, chemically resistant glass composed primarily of silica and boron oxide. It offers outstanding thermal stability, optical clarity, and resistance to acids and solvents, making it ideal for high-performance applications such as security glazing, laboratory equipment, and sight windows exposed to extreme temperature changes. MTC supplies technical-grade borosilicate glass from qualified European and Asian producers.

Property

Typical Value

Density

2.23 g/cm³

Refractive Index (nD)

1.474

Coefficient of Thermal Expansion (20–300 °C)

3.3 × 10⁻⁶ /°C

Softening Point

~820 °C

Thermal Shock Resistance (ΔT)

up to 170 °C

Modulus of Elasticity

64 GPa

Transmission (visible, 4 mm)

≥ 90 %

Chemical Resistance

Excellent to acids and organic solvents

Aplications

  • Transparent armor and high-temperature vision windows

  • Optical and electronic components

  • Laboratory and industrial equipment

  • Security glazing requiring high temperature or chemical resistance

Advantages

Exceptional thermal and chemical durability

  • High optical transmission and surface quality

  • Low thermal expansion for dimensional stability

  • Suitable for lamination with PVB, TPU, or SGP interlayers

Compliance

Manufactured under ISO 9001 and DIN ISO 3585 standards.

Validated under MTC internal QC protocols for lamination, thermal resistance, and chemical exposure.

Notes

Detailed mechanical, optical, and expansion data are available upon request.

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