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Alkali-Resistant Mica Sight Glass
Alkali-Resistant Mica Sight Glass is manufactured from solid alkali-resistant mica material rather than laminated mica sheets. It offers outstanding resistance to high temperatures, steam and alkaline media, making it an ideal solution for boiler sight glasses, level gauges and industrial observation windows. Custom sizes and thicknesses are available.
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Technical data
Alkali-Resistant Mica Glass Overview
Alkali-Resistant Mica Sight Glass is a high-performance transparent glass material developed for industrial applications where conventional glass may be affected by alkaline corrosion. Its unique composition provides outstanding resistance to caustic solutions, chemical attack, and elevated temperatures while maintaining excellent optical transparency.
The material is widely used in chemical processing equipment, reactors, observation windows, pressure vessels, and industrial sight glass assemblies requiring long-term durability in aggressive alkaline environments.
Available in circular, rectangular, and custom-machined configurations, Alkali-Resistant Mica Glass can be manufactured according to customer drawings and application requirements.
Alkali-Resistant Mica Glass — Technical Data
| Parameter | Value / Standard |
|---|---|
| Chemical Stability (Alkali) | pH 8 – 14 (Excellent resistance to NaOH, KOH) |
| Max Operating Temp | -273°C to +600°C |
| Estimated Service Life | ≈ 6 Months at extreme conditions (pH 14 @ 180°C) *Significantly longer at lower temps/concentrations. |
| Acid Resistance | Not recommended for pH < 6 |
| Bending Strength | 450 – 540 MPa |
| Hardness (Vickers) | 500 – 700 HV |
| Common Dimensions | Thickness: 5–40mm | Shape: Round, Rectangular, Oval (Customized to drawing) |
| Certificates | EN10204 3.1, Chemical Composition Analysis |
KEY FEATURES
Alkali Resistance
Protects gauge glass from alkaline corrosion and chemical attack in high-temperature process environments.
Steam & Hot Water Protection
Acts as a protective barrier in high-temperature boiler and steam applications.
Excellent Optical Clarity
Provides clear and unobstructed level observation
Extended Service Life
Helps reduce gauge glass wear and maintenance frequency
Reliable Thermal Stability
Suitable for demanding industrial operating environments
Custom Design Support
OEM / ODM customization available
Custom Manufacturing Service
We provide tailor-made solutions according to drawings or technical requirements.
- Custom diameter
- Custom thickness
- Special pressure design
- Edge polishing
- Optical finishing
- OEM / ODM support
- Custom packaging
TYPICAL APPLICATIONS
- Pressure Vessels
- Chemical Reactors
- Boilers & Steam Systems
- Pipeline Sight Glass Assemblies
- Pharmaceutical Equipment
- Food & Beverage Processing
- Industrial Observation Ports
FAQ
A: Alkali-Resistant Mica Sight Glass provides exceptional resistance to alkaline chemicals, elevated temperatures, and aggressive process media. Engineered for industrial observation applications, it offers reliable transparency, long service life, and excellent durability in demanding chemical processing environments.
A: Yes. Custom dimensions, thicknesses, and edge processing are available according to customer requirements.
A: Power generation, petrochemical, chemical processing, boiler manufacturing, and industrial fluid control industries.
A: Yes. We offer precision-cut mica glass according to customer drawings or technical specifications.
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