Chenshi Tech is an engineering-driven precision glass fabricator providing custom CNC machining, chemical ion-exchange strengthening, and optical coating services for genuine Corning glass substrates. From impact-resistant front covers for consumer electronics and industrial HMIs to high-precision thin-film display glass for research laboratories, we fabricate custom components strictly according to your CAD drawings.
As the most widely adopted formulation in the Corning glass portfolio, Corning Gorilla Glass 3 with Native Damage Resistance (NDR) provides up to a 4x improvement in scratch resistance compared to competitive aluminosilicate glasses. Combined with our custom chemically strengthened etched AG glass panels and high-precision ITO conductive glass substrates, our custom Corning glass solutions offer exceptional surface durability, tight dimensional tolerances, and high optical transmission.
1. Corning Gorilla Glass 3: Official Material Specifications & Performance
Corning Gorilla Glass 3 is uniquely formulated with Native Damage Resistance (NDR) to provide superior surface quality, high retained strength after use, and deep chemical strengthening capabilities.
Mechanical & Physical Properties
| Property / Metric | Official Specification Standard | Testing Condition / Notes |
| Material Chemistry | Alkali-Aluminosilicate with NDR |
Chemically strengthenable matrix |
| Standard Thickness Range | 0.4 mm to 2.0 mm |
Custom micro-thin and custom CNC slicing available |
| Density | 2.39 g/cm³ |
Measured at 20°C |
| Young’s Modulus | 70 GPa |
Elastic tensile modulus |
| Shear Modulus | 28.5 GPa |
Torsional rigidity |
| Poisson’s Ratio | 0.22 |
Lateral contraction ratio |
| Vickers Hardness (Unstrengthened) | 555 kgf/mm² |
200g load |
| Vickers Hardness (Strengthened) | 653 kgf/mm² |
200g load (Deep ion exchange) |
| Fracture Toughness | 0.66 MPa m^0.5 |
High resistance to flaw initiation |
| Coefficient of Thermal Expansion (CTE) | 75.8 × 10⁻⁷ / °C |
Linear expansion (0°C to 300°C) |
Optical & Thermal Profile
| Parameter Category | Standard Metric / Value | Operational Notes |
| Refractive Index (Core Glass) | 1.50 |
At 590 nm (Unaffected by ion-exchange) |
| Refractive Index (Compression Layer) | 1.51 |
At 590 nm (Potassium ion-exchanged surface) |
| Photo-Elastic Constant | 31.9 nm/cm/MPa |
Stress-optical coefficient |
| Optical Transmission | ≥ 91.5% |
Measured at 0.7 mm thickness (380 nm to 2000 nm) |
| Softening Point (10^7.6 poises) | 905°C |
High thermal working limits |
| Annealing Point (10^13.2 poises) | 633°C |
Thermal stress-relief threshold |
| Strain Point (10^14.7 poises) | 580°C |
Safe continuous operating boundary |
Chemical Durability (Weight Loss per Surface Area)
Chemical durability is evaluated by weight loss per surface area after immersion in specific testing solutions:
| Chemical Reagent & Concentration | Immersion Time | Bath Temperature | Weight Loss (mg/cm²) |
| HCl – 5% | 24 hrs | 95°C |
0.6
|
| NH4F:HF – 10% | 20 min | 20°C |
2.1
|
| HF – 10% | 20 min | 20°C |
12.3
|
| NaOH – 5% | 6 hrs | 95°C |
1.9
|
Electrical Properties across Frequency Spectrum
Dielectric constant and loss tangent tested via terminated coaxial line per NIST Technical Notes 1520 & 1355-R:
| Frequency (MHz) | Dielectric Constant | Loss Tangent |
| 54 MHz | 7.59 |
0.022 |
| 163 MHz | 7.48 |
0.022 |
| 272 MHz | 7.44 |
0.021 |
| 381 MHz | 7.42 |
0.022 |
| 490 MHz | 7.38 |
0.021 |
| 599 MHz | 7.37 |
0.022 |
| 912 MHz | 7.30 |
0.023 |
| 1499 MHz | 7.26 |
0.023 |
| 1977 MHz | 7.23 |
0.023 |
| 2466 MHz | 7.20 |
0.024 |
| 2986 MHz | 7.19 |
0.025 |
2. Overview of Full Corning Gorilla Glass & Display Glass Portfolio
In addition to Gorilla Glass 3, Chenshi Tech processes the full range of Corning display and protective materials:
| Material Family / Model | Core Technology & Chemical Feature | Compressive Stress (CS) / DOL | Primary Industrial Role |
| Gorilla Glass Victus 2 | Next-gen aluminosilicate for rough drop surfaces | CS ≥ 750–900 MPa / DOL > 40 µm | Survives 1m drops onto 80-grit asphalt; top-tier mobile covers. |
| Gorilla Glass 7i | Tough aluminosilicate for intermediate flagships | CS ≥ 700–800 MPa / DOL > 30 µm | 1m drop survival on rough surfaces; high value-to-cost ratio. |
| Gorilla Glass 5 | High-durability benchmark for rugged systems | CS ≥ 650–800 MPa / DOL > 30 µm | Survives up to 80% of drops from 1.2m onto flat surfaces. |
| Gorilla Glass with DX/DX+ | High-efficiency anti-reflective optical composite | AR layer on strengthened glass | Cuts ambient reflections by 75%; camera aperture windows. |
| Antimicrobial Gorilla Glass | Ionic silver (Ag+) integrated into glass matrix | Embedded Ag+ antimicrobial ions | Suppresses 99.9% of bacteria; clinical and shared touch panels. |
| Gorilla Armor / Armor 2 | Low-reflection composite with scratch defense | Anti-glare optical stack on tough base | 75% reflection reduction under bright outdoor sunlight. |
| Corning EAGLE XG Slim | 100% alkali-free boro-aluminosilicate | Fusion drawn pristine surface |
Biotech microfluidics, lab-on-a-chip, AMLCD, thin-film sensors. |
| Corning Astra Glass | Thermally balanced high-resolution substrate | Low total pitch variation (TPV) | High-PPI oxide-TFT displays (8K/4K) and thermal baking cycles. |
| Corning Lotus NXT Glass | Ultra-low compaction display glass | Low compaction / High annealing | Flexible OLED and high-temp LTPS semiconductor processing. |
3. Key Application Sectors (Applications)
Our custom-fabricated Corning glass panels and substrates serve diverse high-reliability sectors:
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Mobile Consumer Electronics & Smart Devices: Corning Glass are widely used on protective front and back cover glass for smartphones, notebook PCs, tablets, smartwatches, and fitness trackers.
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Automotive Cockpit Displays: Chemically strengthened curved center information displays (CID), digital instrument clusters, head-up display (HUD) combiners, and rearview mirror windows.
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Commercial & Retail Terminals: Point of Sale (POS) displays, self-service kiosks, public ticketing machines, and automated banking touchscreens.
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Smart Home & Interior Architecture: Smart wall control switches, intelligent thermostats, luxury kitchen appliance touch faceplates, and elevator operation consoles.
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Optical Metrology & Camera Windows: High-precision camera lens protectors, scanner platen glass, barcode reader apertures, and laser optical viewports.
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Biotechnology & Medical Consoles: Diagnostic instrumentation monitors, surgical control consoles, and alkali-free microfluidic analytical cartridges (Corning Eagle XG).
4. In-House Precision CNC Fabrication & Surface Finishing Capabilities
Chenshi Tech translates raw Corning glass master sheets into finished, ready-to-mount components built to your exact CAD (DXF, DWG, STEP) drawings:
| Fabrication Service | Engineering Specifications & Tolerances |
| CNC Profiling & Slicing | Rectangular cutting, circular discs, stepped rabbeted edges, contouring; tolerances to ±0.05 mm (laser cutting down to ±0.02 mm). |
| Edge Profiling & Polishing | 45-degree safety arrises, 2.5D C-chamfers, pencil round (R-edges), and optical edge polishing to prevent micro-chips. |
| Laser & Ultrasonic Micro-Drilling | Clean apertures for camera pinholes, speaker slots, microfluidic inlet/outlets; hole diameter tolerance to ±0.05 mm. |
| Ceramic Frit Silk-Screen Printing | High-temperature ceramic ink framing (OD > 4.5), dead-front icons, IR-transparent sensor windows, and corporate branding. |
| Anti-Reflective (AR) Coating | Vacuum magnetron sputtering reducing front surface reflectance below 0.5% and elevating visible transmittance above 96%–98%. |
| Anti-Fingerprint (AF) Topcoat | Hydrophobic fluorocarbon nano-layer delivering a water contact angle > 115°, actively repelling fingerprints and oils. |
| Chemical Etched Anti-Glare (AG) | Uniform acid micro-etching (Gloss 35–95 GU, Haze 3%–20%) to scatter harsh glare without display sparkle on high-PPI screens. |
