Q2: What is the difference between fused silica and fused quartz?
Q2: What is the difference between fused silica and fused quartz?
| Aspect | Fused Silica (Synthetic) | Fused Quartz (Natural) |
|---|---|---|
| Raw Material | Made from synthetic silicon compounds through flame hydrolysis or CVD technology | Processed from natural high-purity quartz crystals and silica sand |
| Purity Level | Ultra-high purity, metallic impurities are controlled at ppb level | High purity, impurities stay at ppm level, slightly lower than synthetic type |
| OH Content | 1000–2000 ppm | Less than 5–30 ppm after vacuum or electric melting |
| Optical Feature | Excellent deep ultraviolet transmission, the cut-off wavelength is about 170 nm | Better infrared transmission performance, relatively weak in deep ultraviolet band |
| Main Usage | Semiconductor lithography equipment, deep UV laser optical components | Infrared optical systems, long-term high-temperature industrial structural parts |
- What is your MOQ for custom optical glass and display glass parts?
Felix Glass offers highly flexible MOQ to support client projects, including prototype testing, small batch trial orders and large-volume mass production. All products can be fully customized according to your drawings, tolerances and application standards. Send us your specs to get an accurate price quote within 24 hours.
- Can I get free glass samples for testing before bulk order?
Yes, our FELIX GLASS factory supports sample testing for a wide range of precision optical glass components and assemblies. The lead time for sample production is 3 to 7 working days. Please contact us today to arrange samples and obtain a customized solution that meets your needs.
- What is the production lead time for custom optical glass components?
What is the production lead time for custom optical glass components?
Answer: The lead time for standard samples is 3–7 business days, while mass production takes 15–25 business days, depending on product complexity and order volume. We provide reliable, rapid delivery for orders serving the industrial, medical, automotive, and aerospace sectors. Please submit your project details to receive an accurate delivery schedule.
- Are your optical glass products ISO, CE and RoHS certified?
All FELIX GLASS precision optical glass components comply with ISO quality system standards, as well as CE and RoHS requirements. We provide comprehensive test reports, material certificates, and inspection documentation for customer review. Please feel free to request full certification details and a formal quotation today.
- Do you offer one-stop custom optical glass processing services?
Yes. We provide a full range of in-house processing services, including CNC machining, precision grinding, optical polishing, vacuum coating (AR, AF, AG, IR), tempering, and screen printing. Every step—from raw material to finished product—is carried out within our own facility. Please let us know your requirements, and we will provide you with the most cost-effective solution.
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