China ESD Shielding Bags: Premier Protection for Electronics by Trusted Suppliers and Factory
Core Product Advantages
Integrates static dissipation and EMI shielding functions. The outer and inner electrostatic dissipative layers quickly release accumulated charges, keeping surface voltage below 100V; the middle aluminum metallization layer adopts Faraday cage principle, with a resistance of less than 100Ω (meeting international standards), effectively blocking 70% of external electromagnetic waves and reducing interference intensity to 1/1000.
Adopts multi-layer composite structure (PET + Aluminum Metallization + CPP/CPE + Anti-static Coating). PET layer enhances durability and puncture resistance, CPP/CPE layer ensures strong heat sealing and flexibility, and the overall design achieves excellent tensile strength (>18 lbs/inch) and moisture barrier performance (<0.2 g/100 sq.in/24h).
Silver-gray translucent appearance allows easy identification of internal items and barcode scanning without opening the bag. Available in flat bags, self-sealing bags, and zipper bags, with customizable thickness (75μm-120μm) to meet different packaging needs.
Fully complies with ROHS standards and passes strict international tests (ASTM D257, EIA 541, etc.). Static decay time is less than 0.03 seconds, and shielding effectiveness is less than 15 nJ, ensuring stable protection for sensitive components.
Key Technical Specifications
| Performance Indicator | Unit | Standard/Result | Test Method |
|---|---|---|---|
| Metal Layer Resistivity | Ω/sq | <1.0×10² | ASTM D257 |
| Inner/Outer Surface Resistance | Ω/sq | 10⁸ - 10¹⁰ | ASTM D257 |
| Static Decay Time | Second | <0.03 | FTMS 101 MTH 4046 |
| Friction Voltage | Volt | <100 | EIA 541 |
| Thickness | μm | 76±10% / 120±10% | Micrometer Measurement |
| Moisture Vapor Transmission Rate (MVTR) | g/100 sq.in/24h | <0.2 | ASTM E96 |
Wide Application Fields
Ideal for packaging and protecting all types of electrostatic and electromagnetic sensitive products across industries:
Why Choose Our ESD Shielding Bags?
Static damage is one of the leading causes of electronic product failure during circulation, resulting in huge economic losses. Our ESD Shielding Bags build a comprehensive three-dimensional protection system through professional material formula and structural design, effectively reducing product defect rates and ensuring the safety and stability of your high-value components throughout the supply chain.
Frequently Asked Questions
What are the primary protection mechanisms of these ESD shielding bags?
The bags feature a dual-protection design. The inner and outer dissipative layers release static charges to keep surface voltage under 100V. The middle metallized aluminum layer acts as a Faraday cage, blocking up to 70% of external electromagnetic waves and reducing interference intensity significantly.
What materials are used in the multi-layer composite structure?
Our bags utilize a high-performance composite structure consisting of PET (for durability and puncture resistance), Aluminum Metallization (for EMI shielding), CPP or CPE (for flexible heat sealing), and a specialized Anti-static Coating.
Can I scan barcodes through the bag without opening it?
Yes. The silver-gray translucent design provides excellent visibility, allowing for quick internal item identification and direct barcode scanning without compromising the protective environment inside the bag.
Do these bags comply with international standards?
Absolutely. They are fully compliant with RoHS standards and pass rigorous international tests including ASTM D257 and EIA 541. They feature a static decay time of less than 0.03 seconds and a shielding energy of less than 15 nJ.
What bag formats and custom options are available?
We offer various designs including flat bags, self-sealing bags, and zipper bags. The thickness can be customized from 75μm to 120μm depending on your specific packaging and protection requirements.