Matte Black Poly Bubble Mailers Self Adhesive Envelope Packaging Bags Padded Shipping Envelopes for Courier Postal Shipping
Professional matte black bubble mailers featuring integrated cushioning and a secure self-adhesive seal. These shockproof PE bags provide high-opacity privacy and superior impact protection for global shipping.
Yun Sealoong introduces a high-performance logistics solution engineered for the demanding world of global e-commerce and industrial shipping. These professional-grade mailers combine a co-extruded polyethylene exterior with an integrated air-cellular cushioning network to provide superior physical protection. By utilizing a dense array of independent air chambers, this protective packaging effectively absorbs compressive forces and shields delicate contents from impact degradation during complex transit cycles.
Designed for merchants who prioritize both safety and privacy, our mailers feature a high-opacity charcoal black finish that ensures total light obstruction. This opaque matte surface not only presents a professional brand image but also keeps high-value items discreet during international courier handling. With a robust 0.5mm thickness, these bags offer exceptional tear resistance and burst limits, making them an ideal choice for high-frequency fulfillment centers looking to reduce return rates caused by shipping damage.
Every unit is manufactured to strict industrial standards, incorporating reinforced heat-sealed edges and a high-initial-tack adhesive closure. This tamper-evident design creates an irreversible bond, ensuring that the package remains secure from the warehouse to the final destination. Whether you are shipping electronics, luxury apparel, or sensitive documents, our supply chain ensures consistent quality and rapid lead times for high-volume orders.
High Performance Black Poly Bubble Mailers for Secure Logistics
Exceptional Protection with Shockproof Packaging Bags
- The internal liner features a regular network of high-density air retention cells that dampen localized physical shocks. This cushioning matrix is specifically designed to protect fragile electronic components from drop impacts.
- Constructed from resilient PE material, the air bubbles maintain their internal gas pressure even under long-term storage or palletized compression. This ensures the protective barrier remains effective throughout the entire shipping journey.
- Our advanced manufacturing process uses ultrasonic high-frequency welds to cure the marginal seams, significantly increasing the peripheral burst limits. This prevents edge blowout even when the mailer is packed with bulky textiles.
Durable Material Integrity of Black Poly Bubble Mailers
- Each mailer is crafted from a substantial 0.5mm co-extruded multi-layer film gauge. This heavy-duty construction yields superior cross-direction tear resistance, effectively preventing sharp product box corners from piercing the outer shell.
- The non-porous matte black finish provides a moisture-proof surface that resists rainy weather ingress during maritime or ground transportation. This protective layer ensures that your products arrive in pristine, dry condition every time.
- Formulated with intense concentrations of high-opacity charcoal masterbatch, the bags offer full light obstruction. This ensures complete content privacy, which is critical for online retail merchants shipping high-value items globally.
Fulfillment Optimization Using Self-Adhesive Courier Bags
- The sealing flap is equipped with a high-initial-tack destructive hot melt glue system. Once pressed, it forms a tamper-evident fiber-tearing attachment that makes it impossible to open without showing clear signs of interference.
- Designed for high-volume packing environments, the interior skin features a specialized low-friction coating. This high-slip treatment allows warehouse operators to slide items into the bags swiftly without material jamming or friction resistance.
- Our flexible manufacturing capabilities allow for low MOQs starting at 450 pieces with an efficient 8-day lead time. This allows B2B buyers to manage inventory levels effectively while maintaining a professional shipping standard.
B2B Applications for Cushioned Mailing Pouches
- Ideal for e-commerce fulfillment centers requiring high-speed packing and reliable protection for small electronics, cosmetics, and luxury accessories during domestic and international courier transit.
- Perfect for corporate office logistics and secure document shipping where content privacy and a professional, non-reflective matte appearance are essential for brand representation.
- Suitable for spare parts distributors and industrial suppliers who need moisture-proof and dust-resistant packaging that can withstand the rigors of palletized cargo and maritime shipping.
Contact Yun Sealoong today for a custom quote on wholesale orders and discover how our protective mailers can streamline your logistics and reduce transit-related product damage.

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SPECIFICATION
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PRODUCT DETAILS
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Brand Name
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Yun Sealoong
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Place of Origin
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Henan, China
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Features
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These professional Black Poly Bubble Mailers are engineered for high-performance logistics, serving as reliable padded shipping envelopes for secure transit. Featuring an integrated air-cellular cushioning network, these shockproof packaging bags effectively absorb compressive forces to protect fragile items during handling. The opaque matte black bubble mailers ensure total content privacy while the high-initial-tack destructive glue provides a tamper-evident seal. As durable cushioned mailing pouches, they offer a moisture-proof surface and reinforced heat-sealed edges to withstand the rigors of global courier shipping.
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Material
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Poly Bubble (PE)
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Material Structure
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Co-ex PE / LDPE / LLDPE
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Thickness
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0.5mm
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Closure Type
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Self-adhesive Peel & Seal
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Bubble Diameter
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10mm
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Surface Finish
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Matte Black
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Transparency
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Opaque
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Protection Level
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High Shock Absorption
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Edge Design
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Reinforced Heat-sealed Edges
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Water Resistance
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Moisture-proof Surface
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Bag Shape
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Flat Rectangular Mailer
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Application
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Express Courier Shipping
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Industrial Use
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Shipping
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Printing Handling
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Pad Printing, Silk Screen Printing
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Custom Order
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Accept
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MOQ
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450 Piece
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Lead Time
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7-18 days (depending on order quantity)
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Bag Type
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Three-side seal bag
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Color
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Black
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Size
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13*18+4cm, 15*20+4cm, 20*23+4cm, 23*28+4cm, 26*32+5cm, 32*40+5cm, and more
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Feature
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Shock Resistance
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Additional information
| Brand Name | Yun Sealoong |
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| Place of Origin | Henan, China |
| Model Number | TC7-5-7 |
| Feature | Shock Resistance |
| Transparency | Opaque |
| Thickness | 0.5mm |
| Industrial Use | Shipping |
| Application | Express Courier Shipping |
| Printing Handling | Pad Printing, Silk Screen Printing |
| Custom Order | Accept |
| MOQ | 450 Piece |
| Lead Time | 7-18 days depending on order quantity |
| Bag Type | Three-side seal bag |
| Plastic Type | PE |
| Sealing & Handle | Self Adhesive Seal |
| Surface Handling | Matte |
| Material Structure | Co-ex PE / LDPE / LLDPE |
| Color | Black |
| Size | 13*18+4cm, 13*15+4cm, 15*20+4cm, 15*19+4cm, 20*23+4cm, 18*23+4cm, 23*28+4cm, 20*28+4cm, 11*15+4cm, 26*32+5cm, 26*30+5cm, 32*40+5cm, 29*37+5cm |
| Closure Type | Self-adhesive Peel & Seal |
| Bubble Diameter | 10mm |
| Surface Finish | Matte Black |
| Protection Level | High Shock Absorption |
| Edge Design | Reinforced Heat-sealed Edges |
| Water Resistance | Moisture-proof Surface |
| Bag Shape | Flat Rectangular Mailer |
| Actual Thickness | 0.5mm |
















