Aluminum Foil Flat Bag

Our aluminum foil flat bag is the standard format aluminum foil packaging solution for individual electronic components, small PCB assemblies, and industrial parts requiring reliable moisture and ESD protection. The flat, three-side-sealed design provides maximum structural simplicity with consistent barrier performance — making it the most widely used aluminum foil bag format in electronics component packaging worldwide.

Flat bags are manufactured with three factory-sealed sides and one open end for loading. After components are placed inside, the open end is heat-sealed to create a complete hermetic enclosure. The result is a clean, compact package with a minimal material footprint — reducing packaging costs per unit while maintaining full barrier performance.

Key Features

Three-side Seal Construction

Factory-sealed on three sides with one open end for component loading. The simple geometry minimizes material use and packaging time on the production line — important for high-volume electronics assembly and distribution operations.

Full Aluminum Foil Barrier Performance

Identical material construction to other aluminum foil bag formats: PET outer film, aluminum foil core, anti-static PE inner layer. Near-zero WVTR and electrostatic shielding throughout.

Minimal Footprint

Flat bags conform closely to the shape of the packaged component, minimizing void space and reducing shipping volume compared to gusseted or stand-up formats. For high-value components shipped in bulk, this directly reduces logistics costs.

Heat-seal Compatible

Inner PE layer designed for heat-sealing after loading. Compatible with standard impulse heat sealers used in electronics production environments.

Custom Sizes

Available in all custom dimensions. For accurate sizing, add 20–30mm to component width and 40–50mm to component length to allow for the heat seal area and comfortable loading.

Small Batch Orders Welcome

Custom-sized flat bags available in small batch quantities — accessible for businesses at all production scales.

Applications

Aluminum foil flat bags are the standard packaging choice for individual semiconductor packages, IC reels between production runs, small PCB assemblies, hard disk drives and storage modules, sensors and precision instruments, and any electronics component requiring individual sealed moisture and ESD protection.

Frequently Asked Questions

Q: How do I select the right size flat bag for my component?

Add 20–30mm to the component width and 40–50mm to the component length. For example, a 100mm × 150mm PCB would use a 130mm × 200mm bag. This provides comfortable loading clearance and adequate heat seal area.

Q: Can flat bags be used for vacuum packaging?

Yes. Aluminum foil flat bags are compatible with vacuum sealing. The outer PET layer provides the puncture resistance needed to maintain bag integrity under vacuum pressure.

Q: What is the difference between a flat bag and a stand-up pouch?

Flat bags have no gusset and lie flat — they are compact and efficient for individual component packaging. Stand-up pouches have a gusseted base that allows the bag to stand upright — better for bulk components or retail display. For most electronics component packaging, flat bags are the standard specification.

Q: Are custom sizes available?

Yes. All dimensions are custom manufactured. Small batch orders are welcome.

Contact Mavis for aluminum foil flat bag specifications and pricing: mavisv.com/contact