EMI Shielding Glass

EMI shielding glass delivers dual performance: clear optical viewing while blocking electromagnetic wave transmission and signal leakage. As a core transparent EMC protection material, it stops electromagnetic interference and prevents confidential information leakage, without fully blocking visual observation. SAIDA delivers custom-fabricated EMI shielding glass via deep-processing glass workshop, supporting OEM / ODM for global projects.

Key values:

✅ Visual transparency for human observation
✅ Reliable EMI/RFI shielding effectiveness
✅ Custom dimension, thickness and performance grade
✅ Compliant with industrial & military-relevant testing standards

How EMI Shielding Works

Electromagnetic shielding relies on three physical mechanisms to weaken or block incoming electromagnetic waves.

1.Reflection Loss

When electromagnetic waves hit conductive shielding layers, part of wave energy bounces back. Higher conductivity brings stronger reflection loss.

2.Absorption Loss

Wave energy that enters the shielding layer dissipates into heat via material resistance. Electromagnetic signals decay while passing through conductive medium.

3.Multiple-Reflection Loss

Remaining waves bounce repeatedly inside shielding structure. Each internal reflection consumes extra energy to further suppress penetration.

Note: Final shielding performance depends on material selection, mesh density, coating quality and proper grounding during installation.

Three Main Production Technologies

1.Metal mesh (copper, coppernickeliron alloy, etched mesh) is sealed between glass layers by lamination. Available common mesh spec.:100 /130 /165 /250 mesh.

Shielding effectiveness: 40-80 dB (typical working range 60-80 dB)
Light transmittance: 40-70% (100 mesh version up to 75-85%)
Pros: High & stable shielding performance; mesh sealed inside glass against oxidation; blast-resistant safety property
Cons: Visible fine mesh pattern; relatively lower transmittance; heavier weight
Best for: Military hardware, secure government facilities, EMI shielded rooms, cabinet viewing windows, high-security sites

Alloy mesh balances high frequency electric field shielding and low frequency magnetic field shielding with anti corrosion property. Copper mesh performs well on high frequency electric field shielding, while magnetic field attenuation is limited.

2.Coated Type (ITO / NanoSilver Vacuum Coating)

Vacuum magnetron‑sputtering or evaporation deposits transparent conductive thin film onto glass surface.

Shielding effectiveness: 20-40 dB
Light transmittance: 80-90%
Surface resistance: 5-14 Ω/sq
Pros: Extremely high transparency, zero mesh pattern, true-to-image display viewing
Cons: Limited shielding level; surface film vulnerable to scratch and oxidation
Best for: Medical-device displays, commercial screens, office-grade electromagnetic protection

3. Composite Type (Mesh + Conductive Coating Combined)

Combine embedded metal mesh plus surface conductive coating to merge strengths of above two solutions.

Shielding effectiveness: 50-70 dB
Light transmittance: Sits between mesh-laminated and coated grades
Pros: Top comprehensive shielding performance
Cons: Complex manufacturing flow, highest production cost
Best for: High-end military equipment, aerospace viewing windows

Item	Mesh-Laminated	Coated (ITO)	Composite
Shielding Effectiveness	40-80 dB	20-40 dB	50-70 dB
Light Transmittance	40-70%	80-90%	Mid-range
Durability	Excellent (mesh sealed inside)	Weak (surface exposed)	Excellent
Cost Level	Medium	Low	Highest
Visible Mesh Texture	Yes	No	Yes

Quick selection guide

Require maximum shielding → choose mesh-laminated or composite grade

Require highest visual clarity → choose coated ITO type

Balanced performance → customtune parameters for your project

Application focus on

Military & National Defence

Military communication display panels, radar monitor windows, shelter & communication vehicle viewing ports, encrypted communication hardware, confidential‑information equipment windows.

Government & Info Security

Shielding windows for secure departments; viewing panes for shielded rooms & shielding cabinets; monitor windows for confidential computers and classified meeting rooms.

Medical Equipment

Observation windows for MRI scan rooms; protective viewports for patient monitors and precision medical instruments.

Telecom & IT Infrastructure

5G hardware enclosures, viewing windows on data‑center cabinets, server & switch display panels.

Consumer Electronics

Display shielding for smartphones, tablets, laptops and wearable devices; protection for LCD/OLED/CRT screens.

Industrial & Power System

View windows for precision instruments; control‑room panels for power plants and new‑energy stations; electromagnetic‑protection windows for industrial automation devices.

Building & Civil Secure Space

EMI‑shield architectural glazing, partition panels for offices with anti‑information‑leakage requirements.

FAQ Section

1.Do Saida Glass's certifications qualify tempered glass for import into the EU and US?

Answer:Yes — all tempered-glass comply with EN 12150 (EU) , ASTM C1048 (USA), AS/NZS 2208 (Australia) and CAN/CGSB-12.1-M90 (Canada), backed by ISO 9001:2015, ISO 14001:2015. Under EN 12150-1, a 50 mm × 50 mm break test square must yield 40–60 uniform small fragments, and fully tempered glass carries a surface compressive stress of at least 69 MPa; ASTM C1048 sets the same 69 MPa minimum surface compression for fully tempered glass. Saida's 100% full visual inspection plus random dimensional sampling supports the test reports EU/US customs and end customers ask for.
2.What thickness range and dimensional tolerances can Saida process?

We process glass from 0.2 mm to 19 mm thick, hold a dimensional tolerance of ±0.1 mm to ±0.5 mm depending on thickness and process, and handle a maximum panel size of 86’’. Ultra-thin 0.2–1.8 mm work (smartwatch covers, camera lenses, miniature touch panels) runs on dedicated furnaces with the flatness control display-grade glass requires; 2–3 mm is the standard consumer-electronics band, 4–6 mm suits industrial HMI/ATM panels, and 8–19 mm covers furniture, shower and railing glass.
3.Is all cutting, drilling and edge work done before tempering, and do you have the full CNC suite in-house?

Yes — every mechanical process is completed in-house before tempering, because post-temper cutting would cause instant spontaneous breakage. Saida runs precision CNC cutting with tolerance ≤ ±0.1 mm, special-shaped drilling, irregular notching, and edge finishing in flat, round, pencil, bevel and step profiles, all prior to the tempering furnace. This end-to-end pre-process capability is the single most important thing to confirm with any tempered-glass supplier, and it is fully covered here.
4.What mechanical strength can we expect from Saida tempered glass?

Tempered panels deliver roughly 4–5× the strength of annealed float glass of the same thickness: tensile strength 120–200 MPa, compressive strength above 600 MPa, and thermal shock resistance up to a 200 °C sudden temperature change. The dominant reason to specify tempered glass is the failure mode: on breakage it crumbles into small, rounded, blunt fragments rather than sharp splinters, which is why it is the required safety material for any human-contact application.
5.Which surface treatments and printing does Saida offer?

AR (anti-reflective), AG (anti-glare), AF/AS (anti-fingerprint/anti-smudge), mirror, ITO/FTO conductive coating and EMI-shielding bonding, plus standard silkscreen and ceramic DIPtech printing.
6.What is Saida's production capacity and typical lead time?

Annual capacity is 30,000,000+ pieces across 10+ automated and semi-automated lines, with a standard lead time of 15-20 days and flexible EXW, FOB, CIF or DDP shipping.
7.Can Saida work as an OEM/ODM partner and share QC documentation?

Yes — OEM and ODM are the core business model, and Saida provides spec sheets, original inspection test data and break-test records on request.
8.Which markets does Saida already serve?

Primary export markets are North America, Europe, Oceania and Asia, with a service network in 30+ countries.

Contact us

Other Application

Saida Glass partners closely with you to grasp your market hurdles and project demands. Our proficiency in custom glass, from optical coatings to bulk manufacturing, distinguishes us, ensuring unique solutions for your business.