# Custom Borosilicate Glass for Industrial Observation Windows with High Strength

> Custom Borosilicate Glass for Industrial Observation Windows with High Strength — a sight / viewing glass: Ceramic Glass. Specs, RFQ checklist and custom…

- Page: https://machiningglass.com/products/custom-borosilicate-glass-for-industrial-observation-windows-with-high-strength/
- SKU: MG-5660BC
- Category: Industrial, Architectural & Appliance Glass > Sight Glass & Industrial Viewing Windows
- Image: https://machiningglass.com/wp-content/uploads/2026/10/Custom-Borosilicate-Glass-for-Industrial-Observation-Windows-with-High-Strength.webp
- Updated: 2026-10-24

## Overview

Custom Borosilicate Glass for Industrial Observation Windows with High Strength: a sight / viewing glass made from Ceramic Glass. Listed geometry: flat & curved shape. Optical / electrical data: sheet resistance Class C. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.

## Specifications

| Parameter | Value |
| --- | --- |
| Material | Ceramic Glass |
| Shape | Flat & Curved |
| Fire Resistance | Class C |
| Production Process | Punching Holes,Polished Edges,Shaped Design Size |
| Edges Treatment | Safe/Smooth Edge |
| Appearance | Curve, Flat, Round, Rectangular, Square and Custom |
| Duration Of Fire Resistance | 3.00 H |
| Supplier | Tai 'an Zhongxin Glass Technology Co., Ltd |

## What to specify when you request a quote

- **Glass type and thickness** — listed as “Ceramic Glass”; name the glass and thickness.
- **Temperature and pressure** — give working temperature, thermal shock and any pressure rating.
- **Strengthening and safety** — state tempering, lamination or the safety standard.
- **Outline and edges** — listed as “Flat & Curved”; send a drawing with outline, holes and edge finish.

## Engineering guides for this part

For material grades and coating options, see [Borofloat 33 Glass: Material Selection for Precision Substrates](https://machiningglass.com/materials/borofloat-33-glass-material-selection-for-precision-substrates/). How parts like this are machined and finished is covered in [How Borosilicate Glass Is Sandblasted for Matte Surface Processing](https://machiningglass.com/capabilities/how-borosilicate-glass-is-sandblasted-for-matte-surface-processing/). For an application example, read [Quartz Glass Windows for High-Temperature Appliance Modules](https://machiningglass.com/applications/quartz-glass-windows-for-high-temperature-appliance-modules/). Before sending a drawing, check [Thermal Conductivity of Quartz Glass & Fused Quartz: A Process Guide](https://machiningglass.com/resources/thermal-conductivity-of-quartz-glass-fused-quartz-a-process-guide/). A related standard product is [AR Anti-Reflection Optical Window](https://machiningglass.com/products/ar-anti-reflection-optical-window/).

## FAQ

### What is the Custom Borosilicate Glass for Industrial Observation Windows with High Strength made of?

It is listed as Ceramic Glass. Other grades can be quoted if your application needs different transmission, thermal or chemical properties.

### What optical or electrical performance does it have?

Listed values: sheet resistance Class C. Confirm the values at your operating wavelength, angle and temperature when you request a quote.

### What should I include in a quote request?

Include glass type and thickness, temperature and pressure, strengthening and safety and outline and edges, plus quantity and a drawing if the part is custom.

## Request a quote

Send drawings, tolerances and quantity: https://machiningglass.com/contact/?rfq_product_id=3933#mg-rfq

---
Source: Custom Precision Glass Machining — https://machiningglass.com/