9" X 12" Static Shielding Reclosable Bags 100/Box
PCB Assembly & Sensitive IC Static Shielding Bags 9x12 — 3 mil
Reclosable static shielding bags providing full Faraday cage protection for sensitive electronic components requiring both electrostatic discharge (ESD) containment and electromagnetic field (EMI) isolation. The buried metal-in construction sandwiches a conductive aluminum shield layer between two static dissipative polymeric layers for reliable, 360-degree protection regardless of bag orientation.
Specs: 9" x 12" | 3 mil | Multi-Layer Static Shielding (Buried Metal-In) | Reclosable | 100/Box
Applications
- PCB assembly and sub-assembly storage and transit
- Bare die IC, FPGA, and memory module packaging
- Motherboard and GPU card shipping protection
- Semiconductor wafer and substrate storage
- Military and aerospace avionics component packaging
- Sensitive instrumentation and sensor module storage
Features
- Full Faraday cage protection against static charges from both inside and outside sources
- Buried metal-in construction: conductive aluminum layer sandwiched between two static dissipative polymeric layers
- Reclosable zip-top seal for repeated access without compromising ESD protection
- 50% transparent for product identification without opening the bag
- 3 mil rugged construction for physical handling protection during production and shipping
- Contains no amines, amides, or N-Octanoic acid; polycarbonate safe
- Yellow static shielding warning notice stamped on each bag
Compliance
Meets ANSI/ESD S541 and EIA 625 specifications. ANSI/ESD S20.20 program compliant. Tested per MIL-STD-3010 Method 4046 and ANSI/ESD STM11.11 for surface resistivity and shielding attenuation performance.
Use Case Notes
The 9x12 footprint accommodates standard ATX daughtercard sizes, full-length PCI cards, and most mid-size PCB assemblies. The reclosable zipper makes these ideal for service parts, RMA returns, and assembly line kitting where bags are opened and resealed multiple times during production workflows.
Common Questions
Q: What is the difference between static shielding and anti-static bags?
A: Anti-static (pink poly) bags prevent charge generation but do not block external electromagnetic fields. Static shielding bags provide complete Faraday cage protection, blocking both internally generated charges and external ESD events — required for sensitive components per ANSI/ESD S541.
Q: Are these MIL-SPEC compliant?
A: Yes. Tested per MIL-STD-3010 Method 4046 for physical performance and ANSI/ESD STM11.11 for shielding attenuation.
Q: Is the film transparent enough to read part labels?
A: The bag is 50% transparent due to the buried metal-in construction. The film has a slight metallic appearance but allows part number and label identification through the bag without opening.
Why Buy
Compliant static shielding bags in industry-standard 100-count boxes for electronics manufacturing, distribution, and service operations. The reclosable format reduces waste compared to heat-seal-only shielding bags in environments where repeated component access is routine throughout the production or RMA workflow.


