Borosilicate Glass Windows for Sale – Custom Diameter & Thickness, Lab & Viewport Grade

Borosilicate Glass Windows for Sale – Custom Diameter & Thickness, Lab & Viewport Grade: Available in custom sizes to meet specific laboratory and industrial needs.

Borosilicate is the alternative for borofloat 33 (BF33). Therefore, this kind of glass is called high borosilicate glass.

1. Substrata for each level of glass processing.

2. Borosilicate Glass Applications: architecture, furniture, mirrors, automobiles.

Borosilicate Glass Windows Specification

Material:Borosilicate

Diameter:1 to 500 mm

Diameter Tolerance:+0/-0.02 mm

Thickness Tolerance:±0.01 mm

Surface Quality:10-5

Surface Figure:λ/10

Parallelism:1 Minute

Coating:Uncoated, AR, HR, Beamsplitter, etc.

Boro Glass For Sale Technical Information

Borosilicate glass is cheap. Its high temperature resistance is very great and it can make a popular material for laboratory equipment. Its low temperature tolerance makes it an ideal choice for many different uses. Borosilicate glass has several unique properties, including low thermal expansion. Its high heat resistance enables scientists to study tiny organisms. It is a popular telescope material because it can withstand extremely high temperatures and a range of temperature variations. It is best suited for applications that require an extremely high level of security.

Product Specifications

Product Date 2026
Delivery cycle within 1 month
Customize Support
Price Quotation
Exit Support
OEM Quotation
Supplier TianCheng Optics CO.,Ltd
Delivery Method Land transport/Ocean transport, etc.
User Manual provide
Shippable Areas Southeast Asia and Global

Procurement Recommendation

Borosilicate glass windows (e.g., BK7 or equivalent) should offer high transmission (>90% in visible range), low thermal expansion, and resistance to thermal shock and chemical corrosion. Specify surface quality (e.g., 60-40 scratch-dig), parallelism (<3 arcmin), and optional AR coatings based on application—whether for vacuum viewports, laser systems, or analytical instruments. Suppliers must provide dimensional tolerance reports (±0.1 mm typical), edge polishing, and cleanroom packaging to prevent contamination. Custom diameters (10–300 mm) and thicknesses (1–20 mm) are common; confirm lead times for non-standard sizes. Ideal for harsh environments like semiconductor processing or marine sensors. Choose manufacturers with ISO 9001 certification and experience in optical-grade fabrication to avoid bubbles, striae, or stress birefringence that could compromise optical performance. (for reference only)

Due to market conditions, product updates, and policy changes, please contact the supplier for the latest information.