Ziplock ESD Shielding Bag – Anti-Static Packaging for Electronics

Name: China Ziplock ESD Shielding Bag Manufacturers, Suppliers, Factory - Made in China - Weston
Brand: Weston
SKU: 312863000

What Is a Ziplock ESD Shielding Bag?

A Ziplock ESD shielding bag is a resealable, static-dissipative packaging bag made from laminated PET and CPP film. It protects static-sensitive electronic components - such as PCBs, graphics cards, and memory modules - from electrostatic discharge, dust, and moisture during storage, handling, and shipping.

Ziplock ESD Shielding Bags

Product Specifications

Spec	Detail
Product type	Ziplock ESD (electrostatic discharge) shielding bag
Material	Virgin PET (outer layer) + CPP (inner layer) laminate
Surface resistivity	10^6 – 10^11 Ω/sq, inner and outer surface (antistatic range)
Total thickness	0.15 mm (15 si, ≈ 6 mil)
Closure type	Self-sealing ziplock, resealable
Protection	Anti-static, dust-proof, moisture-proof, EMI-shielding
Standard sizes	6 × 9 cm (2.36 × 3.54 in) · 12 × 20 cm (4.72 × 7.87 in) · 40 × 60 cm (15.75 × 23.62 in)
Custom options	Non-standard sizes, zipper/opening style, printed logo
Typical use	Static-sensitive electronic component packaging

Key Features & Benefits

Virgin PET + CPP material - made entirely from new resin, not recycled film, for consistent clarity, strength, and stable ESD performance.

Reliable anti-static protection - inner and outer surface resistivity of 10^6–10^11 Ω/sq, within the standard range that defines an antistatic packaging material.

Strong seal integrity - the laminated construction seals tightly, keeping dust and moisture out.

Dust-proof and moisture-proof - barrier layers shield packaged components from humidity, condensation, and airborne particles.

Resealable ziplock closure - a self-sealing zip strip lets you open, reload, and reseal the bag by hand, again and again, with no tape or heat sealer needed.

EMI-shielding barrier - the multi-layer film helps block external electromagnetic interference from reaching the packaged item.

0.15 mm total thickness (15 si / ≈6 mil) - thick enough to resist punctures, thin enough to stay flexible and easy to seal.

Where Is This Antistatic Shielding Bag Used?

Weston's ziplock ESD shielding bag is used across electronics manufacturing, repair, and logistics to package static-sensitive parts, including:

Graphics cards (GPUs) - shields exposed contacts and chips during transit
PCB boards - protects bare and populated circuit boards from static discharge
Memory modules (RAM sticks) - prevents ESD damage during storage and shipping
Hard drives (HDD / SSD) - guards drives against static, dust, and moisture
Hardware components - general static-safe packaging for metal and mechanical parts
3C digital parts - computer, communication, and consumer-electronics components

Customization Options

This ESD shielding bag ships as a stock item in three standard sizes, and can also be produced to custom specification:

Customizable element	Options
Size	Any non-standard size, in addition to the 3 stock sizes
Opening / zipper style	Multiple zip-closure styles available
Printing	Logo and brand printing for OEM / private-label orders

Frequently Asked Questions

Q: What Does "Ziplock" Mean on an ESD Bag?

A: It refers to the resealable zip-style closure built into the bag opening. You can open the bag, load or remove items, and reseal it by hand - no tape or heat sealer required.

Q: What Surface Resistivity Qualifies a Bag as Antistatic?

A: A bag is generally classified as antistatic when its surface resistivity - inner and outer - falls between 10^6 and 10^11 ohms per square (Ω/sq). This ziplock ESD shielding bag falls within that range.

Q: How Does an ESD Shielding Bag Protect Against Static Electricity?

A: Its layered PET/CPP film channels static charge across the bag's surface instead of letting it build up, reducing the risk of an ESD event. The same multi-layer barrier also helps shield the contents from external electromagnetic interference.

Q: Is This ESD Bag Waterproof?

A: It's moisture-proof and dust-proof by design, protecting enclosed components from humidity, condensation, and airborne dust. It's not intended as a fully submersible, waterproof enclosure.

Q: What Sizes Are Available, and Can I Order Custom Sizes?

A: Standard sizes are 6×9cm, 12×20cm, and 40×60cm. Non-standard sizes, custom zipper styles, and logo printing are all available on request.

Q: What's the Difference Between the PET and CPP Layers?

A: PET forms the durable, printable outer layer, which resists wear and supports the bag's shielding function. CPP is the inner, heat-sealable layer that directly contacts the packaged item and gives the bag its seal.

Test data shown reflects results from a representative production batch under IEST-RP-CC004.3. Batch-specific certificates of analysis are available on request.

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