Why Choose StratoGrey Static Shielding Bags?When standard anti-static bags aren't enough, StratoGrey flat static shielding bags provide the highest level of ESD protection available. These bags combine three layers of protection: an anti-static outer layer, a conductive middle layer (buried metal), and a static-dissipative inner layer. What Makes StratoGrey Different?Buried Metal Construction: Unlike pink poly anti-static bags that only prevent tribocharging, StratoGrey bags create a Faraday cage effect that blocks external electrostatic fields. This makes them essential for Class 0 and Class 1 ESD-sensitive devices. Amine-Free Formulation: Many static shielding bags use amine-based additives that can corrode polycarbonate surfaces over time. StratoGrey's advanced formula eliminates this risk, making them safe for optical components, lenses, and sensitive electronic displays. Zero Outgassing: Critical for cleanroom environments and long-term storage, these bags produce no volatile organic compounds (VOCs) that could contaminate sensitive electronics or optics. Common Applications- Electronics Manufacturing: PCB assembly, component storage, work-in-progress protection
- Repair & Service: Hard drive replacement, smartphone repair, computer component handling
- Warehouse Storage: Long-term inventory protection for CMOS chips, sensors, and modules
- Shipping: Safe transport of static-sensitive devices to customers or service centers
How to Choose the Right SizeSelect a bag that allows 1-2 inches of clearance around your component on all sides. This prevents stress on pins and connectors while ensuring a proper seal. For irregular shapes, use the next size up to avoid punctures. Static Shielding Bags vs. Anti-Static BagsPink Poly Anti-Static Bags: Prevent tribocharging (friction-generated static). Good for Class 2-3 devices. Lower cost. StratoGrey Shielding Bags: Block external ESD and electromagnetic interference. Required for Class 0-1 devices. Higher protection. If you're unsure which type you need, check your component's ESD sensitivity rating or consult the manufacturer's packaging specifications. Compliance & StandardsStratoGrey bags meet or exceed industry standards for ESD protection, including ANSI/ESD S20.20 and relevant MIL-SPEC requirements. They are manufactured in ISO-certified facilities with lot traceability. Order Wholesale Static Shielding BagsPrism Pak offers competitive wholesale pricing on all LK Packaging StratoGrey products. Stock sizes ship same-day when ordered by 3 PM EST. Volume discounts available. Need custom sizes or printing? Contact our packaging specialists at (570) 709-0366.
Static Shielding Bag FAQs
What is a static shielding bag?A static shielding bag is a multi-layer bag with a buried metal layer that creates a Faraday cage effect, blocking external electrostatic fields from reaching whatever is inside. Flat StratoGrey bags use three layers — an anti-static outer layer, a conductive buried metal middle layer, and a static-dissipative inner layer — so they protect PCBs, semiconductors, hard drives, sensors, and RFID components from ESD as well as moisture and dust. What is the difference between a static shielding bag and a pink anti-static bag?Pink poly anti-static bags only prevent tribocharging (static generated by friction) and are generally used for Class 2 and Class 3 devices, while StratoGrey shielding bags also block external electrostatic fields and electromagnetic interference, which is what Class 0 and Class 1 ESD-sensitive devices require. If your component's ESD sensitivity rating is Class 0 or Class 1, use a shielding bag rather than pink anti-static poly. Are StratoGrey bags safe for polycarbonate, lenses, and optical components?Yes — StratoGrey bags use an amine- and amide-free formulation, so they will not corrode polycarbonate surfaces, lenses, or electronic displays the way amine-based static shielding films can over time. They also produce no VOC outgassing, which makes them suitable for cleanroom environments and long-term storage of optics and sensitive assemblies. What size static shielding bag should I use?Choose a bag that leaves 1 to 2 inches of clearance around the component on all sides, which keeps pressure off pins and connectors and leaves room for a proper seal. For irregularly shaped parts or anything with sharp edges or corners, step up to the next size to avoid punctures. How do you close a flat static shielding bag?Flat static shielding bags have an open top, so they are closed with a heat sealer or with ESD-safe tape after folding the top over. If you would rather have a reclosable closure, LK Packaging also makes seal-top (zipper) StratoGrey shielding bags in the same shielding construction. What ESD standards do StratoGrey static shielding bags meet?StratoGrey static shielding bags meet or exceed industry standards for ESD protective packaging, including ANSI/ESD S20.20 and relevant MIL-SPEC requirements. They are manufactured in ISO-certified facilities with lot traceability, so you can document the packaging used for a given build or shipment. |
