Poor surface hardness leads to gravel scratch and permanent radar performance degradation
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77GHz Millimeter Wave Radar Protective Cover Glass | AR+AF Coated Radar Dustproof Optical Window






Felix Glass produces customized millimeter wave radar dustproof protective optical glass, also known as radar protective cover glass. As standardized core automotive safety parts for passenger fuel and new energy vehicles, our radar windows perfectly match front and rear 77GHz anti-collision millimeter wave radar modules. This ADAS radar dustproof window serves as collision avoidance radar cover for automotive active safety systems, with steady recurring bulk orders from global automotive Tier 1 suppliers and vehicle OEMs. Unqualified coating causes high electromagnetic attenuation and unstable radar signal output Coating peeling after temperature cycling, unable to meet long-term vehicle durability standards We adopt high-strength chemically strengthened aluminosilicate automotive radar tempered glass as substrate, reaching Mohs 7 hardness to achieve excellent scratch and impact resistance. It withstands gravel impact, sand abrasion, long-term UV radiation and rain corrosion during highway and off-road driving, avoiding permanent surface damage that weakens radar detection stability. Chemically strengthened aluminosilicate glass against stone impact and surface abrasion. Minimize millimeter-wave attenuation while repelling mud, snow, rain and road contaminants. Reliable optical performance from -40℃ to 85℃ with durable coating after thermal cycles. Our radar protective glass maintains stable optical and mechanical performance within full automotive temperature range. After thousands of hot-cold alternating thermal cycle reliability tests, the coating remains intact without peeling, cracking or transmittance decay. We support full customization: irregular CNC contour cutting, precise mounting holes, black light-shielding silk screen printing and edge chamfering, perfectly matching millimeter wave radar modules of mainstream vehicle brands. Irregular contour cutting according to customer engineering drawings. Surface polishing and edge chamfer treatment. Black light shielding printing for automotive radar assembly. Dual-function composite coating deposition inside cleanroom. CCD full-automatic optical inspection and dust-free packaging. ADAS millimeter wave radar module manufacturers for passenger vehicle active safety systems. Domestic and overseas EV & fuel car manufacturers for front/rear anti-collision radar assembly. Engineers requiring prototype sampling for new radar product verification projects. Specialized in automotive-grade precision optical glass custom manufacturing. All processes finished inside factory without outsourcing to control quality and lead time. Support rapid sample order for automotive project preliminary verification. CCD automatic inspection for flatness, transmittance, dimension and appearance. Mature bulk delivery experience serving global automotive industrial customers. Optimized for 77GHz automotive anti-collision millimeter wave radar, compatible with mainstream vehicle radar modules. Yes. We support CNC customized irregular shape, positioning holes and black shielding printing strictly per your engineering drawing. We support small-batch sampling for automotive R&D verification, then scalable mass OEM production after project confirmation. The AR+AF composite coating withstands thousands of -40℃~85℃ thermal cycle tests without peeling or failure. Share your DXF drawing, required thickness, coating requirement and order volume. Our automotive optical engineering team will provide customized solution and formal quotation for your ADAS millimeter wave radar assembly.77GHz Millimeter Wave Radar Protective Cover Glass | AR+AF Coated Radar Dustproof Optical Window

Common Challenges For Automotive Radar Cover Procurement
Advantages of Felix Glass ADAS Radar Protective Glass
Mohs 7 Hardened Substrate
Low-Loss AR+AF Coating
Wide Temperature Stability

Engineering Specifications
Item
Parameter
Base Material
Chemically strengthened aluminosilicate tempered glass
Available Thickness
1.1mm / 1.5mm / 2.0mm
Dimensional Tolerance
±0.01mm
Surface Hardness
Mohs Grade 7
Optional Coating
AR+AF composite functional coating
Continuous Operating Temperature
-40℃ ~ 85℃
Target Application
Automotive ADAS 77GHz millimeter wave anti-collision radar

One-Stop Customization Service
Complete Production Process in Class 100 Cleanroom
CNC Precision Shaping
Double-Sided Polishing
Silk Screen Printing
AR+AF Vacuum Coating
Inspection & Packing
Main Target Buyers
Automotive Tier 1 Suppliers
New Energy Vehicle OEM
Automotive Optical R&D Teams
Core Advantages
19+ Years Optical Glass Experience
Fully In-House Production
Small Batch Prototype Sampling
Full Pre-Shipment Inspection
Overseas Automotive Project Experience
Internal Links For ADAS Optical Product Cluster
Frequently Asked Questions
What millimeter wave frequency is this glass suitable for?
Can you produce according to customer’s DXF drawing?
Is small prototype sample order acceptable?
Can the coating pass temperature cycle aging test?
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Get Free RFQCustom Precision Optical & Glass Components Manufacturer – Felix Glass Co., Limited.
We supply Industrial Glass, Sapphire Optics, Optical Lenses/Prisms/Filters, Infrared IR Optics, Functional & Display Glass, N-BK7/H-K9L Optical Glass, supporting OEM mass production and laboratory custom prototypes. Flexible MOQ & free sample service available. Fill in the form to download full datasheets and get factory wholesale price within 24 hours.
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- 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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