Are your optical domes scratch resistant?

Update Time:2026/5/2

Our optical domes are designed with hierarchical scratch resistance solutions according to different application environments, meeting the wear and impact protection needs of various harsh scenarios.

Sapphire optical domes are the highest grade in scratch resistance, with Mohs hardness up to 9, second only to diamond. It has super strong anti-scratch, anti-abrasion, high temperature resistance and chemical corrosion resistance, not easy to be scratched by sand, dust and hard foreign objects in long-term outdoor, underwater and aerospace environments, maintaining long-term surface finish and clear imaging effect.

For conventional BK7/K9 optical glass domes, we can deposit high-performance DLC diamond-like carbon coating on the polished surface. The DLC coating has ultra-high surface hardness, effectively improving scratch resistance, friction resistance and anti-fouling ability, avoiding daily wear and surface scratches affecting optical transmittance.

In addition, we can match hydrophobic and anti-fog coating on the basis of scratch resistance, making the optical dome surface waterproof, oil-proof, not easy to adhere dust and water mist, reducing manual cleaning and maintenance frequency. Felix Glass can recommend the most suitable material and coating scratch resistance solution according to your installation environment, working temperature and service life requirements, ensuring the optical domes maintain stable performance for years of continuous operation.

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Learn more from our FAQ

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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Are your optical domes scratch resistant?

A specialist in precision optical glass with 19 years of experience, providing comprehensive, satisfying custom solutions.

A specialist in precision optical glass with 19 years of experience, providing comprehensive, satisfying custom solutions.