Custom Rectangular Quartz Frit | High-Purity Filter Element Supplier

Custom Rectangular Quartz Frit | High-Purity Filter Element Supplier

Our custom rectangular quartz frit is a premium filtration element manufactured from high-purity fused quartz, with a minimum SiO₂ content of 99.99%. This material ensures outstanding thermal resistance up to 1200°C, a low coefficient of thermal expansion, and superior chemical inertness against strong acids, bases, and organic solvents. The precisely controlled pore structure allows efficient particle capture while maintaining high flow rates, making it ideal for critical separation tasks in laboratory and industrial settings.

The rectangular geometry offers distinct advantages over round discs, enabling efficient use of space in flat‑plate filter holders, gas spargers, and bioreactor aeration systems. We offer full customization options: you can specify overall length and width, thickness from 1 mm to 10 mm, pore size grades (G0–G3 or custom micron ratings), and optional surface grinding for a smooth finish. Our engineering team works closely with clients to optimize the design for their specific fluid dynamics and pressure requirements. We produce both small‑batch prototypes for process development and high‑volume orders for production lines.

Each piece is sintered under precisely controlled temperature profiles to achieve uniform density and mechanical strength. After sintering, every frit is inspected for dimensional tolerance, bubble‑point pressure, and optical clarity. We also provide ultrasonic cleaning recommendations and reuse protocols to extend service life. As a reliable supplier, we ensure fast turnaround, secure packaging, and full traceability. Our products serve diverse fields, including pharmaceutical quality control, environmental water analysis, semiconductor chemical delivery, and catalyst research. We are ISO 9001 certified and adhere to strict quality management standards. For a prompt quotation, simply send your drawings or desired specifications, and we will reply with technical suggestions and competitive pricing within one business day.

Fused Quartz Glass Features:

Fused quartz glass is a special industrial glass made of silicon dioxide. It is a very good basic material. Quartz glass has a series of excellent physical and chemical properties.

1. High temperature resistance. The softening point of fused quartz glass is about 1730℃ and can be used for long time working under 1100℃~1250℃.  And working at 1450℃ in a short time.

2. Corrosion resistance. In addition to hydrofluoric acid, fused quartz glass is inert to other acids. Its acid resistance is 30 times as ceramic, 150 times as stainless steel. Especially, any other material cannot make a comparison with chemical stability of fused quartz at high temperature

3. The thermal stability is good. Thermal expansion coefficient is extremely small. And it can withstand severe temperature changes such that heating up to 1100℃ and putting it in normal temperature water will not crack.

4. The light transmittance is good. Quartz glass has good transmittance in the whole spectral band from ultraviolet to infrared. The transmittance of the visible light is above 95%. Especially in the ultraviolet spectrum band and the maximum transmittance is over 85%.

5. The electrical insulation performance is good. Resistance value of quartz glass equaling to 10000 times of ordinary glass. It is an excellent electrical insulating material and has good electrical properties even under high temperature.

As a leading China fused quartz glass supplier and manufacturer, we are providing best price as well as quality for all kinds of customized fused quartz products. We are also willing to look for long term partners who are a distributor or wholesaler specialized in fused quartz glass in local.

For prompt quotation, please contact us at below form.

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Fused quartz glasses have the excellent properties for their following features:

• High working temperature
• Thermal shock resistance
• High electrical insulation
• Optical transparency
• Chemical inertness