Schott Borosilicate Glass Substrate BF33 — 10-Pack
Pack of 10.
BOROFLOAT 33 borosilicate glass substrates: mirror-smooth and very flat, with low thermal expansion (3.25 × 10⁻⁶ K⁻¹), 91% transmittance and long-term use up to 450 °C.
Louise Corscadden, PhD
Director of Science · ConductScience
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Key Specifications
Full details →- Model fit
- Configured during quote
- SKU family
- WHM-0169-10PK
- Shipping box
- 181.8 × 136.3 × 90.9 cm
- Ordering
- Online checkout and quote request available
- Category
- Lab Equipment
- Build notes
- Confirm accessories, station layout, and support needs before purchase
BOROFLOAT 33 is a high-quality borosilicate float glass with a uniform body, a mirror-like surface, very high flatness and good optical properties. Low expansion and high thermal-shock resistance allow long-term use at 450 °C, and it resists water, strong acids, strong alkalis and organic substances. Its low alkali content makes it a good electrical insulator.
Specifications
- Density (25 °C): 2.2 g/cm³
- Thermal expansion (20–300 °C, ISO 7991): 3.25 × 10⁻⁶ K⁻¹
- Transmittance: 91%
- Softening point: 820 °C
- Working temperature: 450 °C long term (10 h or more), 550 °C short term (under 10 h)
- Refractive index (587.6 nm): 1.47140
- Knoop hardness: 480
Pack of 10.
Shipping weight
- 3.3 lb
Shipping box
- L: 181.8 cm
- W: 136.3 cm
- H: 90.9 cm
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