John Moncrieff: Your Source for High-Purity Quartz Glass Products

John Moncrieff Ltd offers a comprehensive range of quartz glass products crafted from high-purity silicon oxide glass. Available in three distinct grades, our quartz materials are designed to meet diverse light transmission and performance requirements. We supply flat glass, tubular glass, and custom-formed shapes including bowls, hollowware, and boats.

Key Features of Quartz Glass

• Exceptional Heat Resistance: Withstands temperatures up to 1200°C while maintaining structural integrity.
• Superior Hardness: Rated Mohs hardness 7, offering excellent scratch and wear resistance.
• Broad Spectrum Transparency: Transmits UV, visible, and infrared light with minimal absorption.
• Excellent Chemical Resistance: Resists corrosion from most acids and alkalis with superior chemical stability.
• Radiation Resistance: Maintains optical and mechanical properties under ionizing radiation.
• Electrical Insulation: Exceptional dielectric strength even at elevated temperatures.

Additional Properties

• Water & Acid Resistance: Resistant to water and strong acids (except hydrofluoric acid).
• Thermal Shock Resistance: Handles rapid temperature changes due to its low thermal expansion coefficient.
• High Melting Point: Retains its integrity at extreme temperatures.

Applications

Quartz glass is an indispensable material in industries requiring superior heat resistance, optical clarity, and chemical durability. Its versatility makes it ideal for a wide variety of demanding environments and precision applications, including:

• Semiconductor Manufacturing: Wafer processing, diffusion tubes, and lithography components.
• Optical Components: Lenses, prisms, and precision optical elements.
• High-Temperature Equipment: Furnaces, crucibles, and laboratory apparatus.
• Chemical Processing: Reactors, containers, and vessels for corrosive substances.
• Lighting Applications: Halogen, UV, and high-intensity lamp envelopes.

John Moncrieff combines craftsmanship, technical knowledge, and materials expertise to deliver quartz glass solutions that meet the highest standards of precision and performance.

Contact us today to discuss your quartz glass requirements or request a custom quotation.