Poly Mailers and Courier Bags
Poly Mailers and Courier Bags
Poly Mailer / Shipping Bag
A poly mailer shipping bag is a HDPE LDPE mailing bag with self seal hot-melt adhesive closure and heat-seal welded edges for express and mail services.
Product Overview
A poly mailer shipping bag is a HDPE LDPE mailing bag with self seal hot-melt adhesive closure and heat-seal welded edges for express and mail services. It is made in customized sizes from 30 micron to 110 micron for mailing shipping and packaging use, in stock colours or with custom printing design strictly followed.
Key Benefits
- Moisture-proof and waterproof film protects contents during express transit and mail handling
- Self seal hot-melt adhesive closure closes each bag without tape or extra packing labour
- Heat-seal welded edges hold the mailing bag together through sorting and delivery
- Thickness from 30 micron to 110 micron lets you match film weight to mailing needs
- Customized sizes follow your design so the bag fits the product being mailed
- Stock colours or custom printing design carry your dispatch information on the bag
Problems It Solves
- Loose cartons add weight and cost when a mailing bag is enough for dispatch
- Moisture in transit damages contents without moisture-proof waterproof mailing film
- Tape sealing slows packing while self seal hot-melt adhesive closes the bag directly
- Fixed stock sizes waste material while customized sizes follow your ideas or design
- Weak side seams split in transit while heat-seal welding holds the bag edges
Who It Is For
- Shippers sending orders by express and mail services in plastic mailing bags
- Warehouses packing mailing shipping and packaging volumes in poly envelopes
- Buyers needing customized sizes to fit different mailing products
- Buyers needing stock colours or custom printing design on courier bags
Application
Where This Format Is Used
- Express parcels sent in courier bags through mail services and courier routes
- Mailing bags used as shipping bags for packaging and dispatch operations
- Poly envelopes used for mailing and shipping through express services
- Shipping bags in customized sizes for different mailing and packaging requirements
- Transparent clear poly mailers where contents need visual check during handling
Construction
Technical Features
- HDPE or LDPE film construction with material supplied as per customer request
- Film thickness from 1.2 Mil to 4.0 Mil or 30 Micron to 110 Micron custom-made
- Self seal closure using hot-melt strong adhesive for fast mail bag sealing
- Edge seal formed by heat-seal welding to close the mailing bag sides
- Moisture-proof and waterproof feature with transparent clear film option available
- Stock colours include White Grey Pink Blue Red Purple Green Yellow and Orange
Data
Specifications
Figures below are the documented values for this format. Anything not listed is made to your drawing.
| Item | Mailing bags, poly mailer, poly envelope, courier bags |
|---|---|
| Material | HDPE / LDPE / As Per Customer Request |
| Thickness | 1.2 Mil to 4.0 Mil / 30 Micron to 110 Micron / Custom-Made |
| Feature | Moisture-proof, Waterproof, transparent, clear |
| Closure | Self seal with hot-melt strong adhesive |
| Color | White / Grey / Pink / Blue / Red / Purple / Green / Yellow / Orange, custom printing design will be strictly followed |
| Size | Customized size, follow client's ideas or design |
| Edge Seal | Heat-seal welding |
| Application | Mailing, shipping and packagings, express and mail services |
Materials
- HDPE film option for poly mailers courier bags and poly envelopes
- LDPE film option for mailing bags shipping bags and mail envelopes
- Material supplied as per customer request where HDPE or LDPE is not specified
Customisation
- Sizes customized to follow your ideas or design for mailing needs
- Thickness custom-made within 1.2 Mil to 4.0 Mil or 30 Micron to 110 Micron
- Colours selected from White Grey Pink Blue Red Purple Green Yellow Orange
- Custom printing design strictly followed for courier bag orders
- Material specified as HDPE LDPE or as per customer request
In the Factory
How This Format Is Made
Control
Quality Checks on This Run
Trade Offs
Compared With the Alternatives
| Carton box | Poly mailers save weight and storage for express dispatch but cartons support stacking for heavier shipments |
|---|---|
| Paper mail envelope | Poly mailers stay moisture-proof and waterproof in transit while paper envelopes absorb water |
| Stock colour mailer | Stock colours cover fast dispatch needs while custom printing design follows your artwork for branding |
Before You Order
Use Guide
- Send your required bag length and width because sizes follow your ideas or design
- Choose HDPE or LDPE or state material as per your request before ordering
- Select thickness between 30 Micron and 110 Micron to suit mailing weight
- Pick a stock colour or send custom printing design to be strictly followed
- Confirm quantities for mailing shipping and packaging use before quotation
Answers
Poly Mailer / Shipping Bag — Buyer Questions
What material are the mailers made from?
HDPE or LDPE, or material as per customer request. State your preference when you enquire.
What thickness can you supply?
From 1.2 Mil to 4.0 Mil, which is 30 Micron to 110 Micron, and custom-made thickness is available.
What sizes can you make?
Customized sizes that follow your ideas or design. Send length and width for quotation.
What colours and printing are available?
White, Grey, Pink, Blue, Red, Purple, Green, Yellow and Orange, and custom printing design will be strictly followed.
How does the bag close?
Self seal with hot-melt strong adhesive, with edges closed by heat-seal welding.
Are the bags waterproof for mailing?
Yes. The feature is moisture-proof and waterproof, with transparent and clear options available.
Related
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Background Reading
Guides Behind This Format
BOPE Film
Quote Poly Mailer / Shipping Bag to Your Drawing
Send the size or fill volume, film structure, print colour count, quantity and destination port and we will price it properly.