Factory Direct · Guangzhou, China · MOQ 500 pcs
Custom self-sealing corrugated mailer box combines protective corrugated construction with a built-in peel-and-seal adhesive closure. The integrated sealing strip allows the box to be closed without applying separate packing tape, making it suitable for e-commerce fulfillment, subscription orders, apparel, accessories, beauty products and other direct-to-consumer shipments.
Box dimensions, corrugated grade, printing and closure details can be customized around your product and packing process. An easy-open tear strip can also be added when required.
MOQ: 500 pcs per size and design. Custom samples available before bulk production.
For brands packing a large number of online orders, the closure method of a shipping box can affect both packing efficiency and the final customer experience.
Our custom self-sealing mailer boxes use an integrated adhesive strip on the closing flap. Packers remove the release liner, fold the lid into position and press the adhesive area to close the box. This eliminates the need to apply separate packing tape to every package and gives the finished parcel a cleaner appearance.
The structure can be produced in custom dimensions to suit the product, packing arrangement and required corrugated strength.
The defining feature of this mailer is the built-in peel-and-seal adhesive strip.
Unlike a standard tuck-top mailer that relies only on locking tabs or additional tape, the adhesive closure provides a dedicated sealing area directly on the box.
This structure is particularly useful for:
e-commerce fulfillment, apparel and fashion orders, subscription products, beauty and personal care items, small home and lifestyle goods, accessories, stationery and branded promotional kits.
For projects where easier customer opening is required, an additional perforated tear strip can be incorporated into the lid design.
The mailer can be manufactured from E-flute, B-flute or another corrugated grade selected according to the dimensions and packed weight.
E-flute provides a relatively compact profile and a good printing surface for many branded e-commerce applications, while heavier corrugated constructions can be considered when additional compression or transit protection is required.
White and kraft liner options are available depending on the desired visual appearance and printing requirements.
The large lid, front and side panels provide useful space for brand graphics without changing the functional purpose of the shipping box.
Printing can be developed for the exterior only or for both the exterior and interior.
Available options include CMYK artwork, Pantone brand colors, logos, patterns, product messaging and inside-lid communication.
For designs using detailed graphics or critical brand colors, the final print method and liner material should be confirmed before production because the paper surface can affect the finished color appearance.
A self-sealing mailer should be developed around the actual item being shipped rather than selected only by its external appearance.
We can adjust the length, width and depth according to the product dimensions, packed weight, quantity per box and any internal protective material.
Optional corrugated, paperboard or other custom inserts can also be developed when products need additional positioning inside the box.
A correctly sized mailer can reduce unnecessary internal space while maintaining enough clearance for practical packing and closing.
A tear strip can be added as an opening feature when required.
The adhesive strip and tear strip perform different functions: the adhesive strip is used to seal the parcel before shipping, while the tear strip gives the recipient a defined opening point.
This combination is suitable for brands that want a closed shipping package without requiring the customer to cut through layers of external packing tape.
| Specification | Options |
|---|---|
| Product Type | Custom self-sealing corrugated mailer box |
| Closure | Integrated peel-and-seal adhesive strip |
| Opening | Standard opening or optional easy-open tear strip |
| Material | Corrugated paperboard |
| Flute | E-flute / B-flute / custom grade |
| Surface | White liner / Kraft liner |
| Size | Fully customized |
| Printing | CMYK / Pantone / custom logo printing |
| Print Area | Exterior / interior / both sides |
| Insert | Optional paperboard or corrugated insert |
| Packing | Flat-packed |
| Main Use | E-commerce and direct-to-consumer shipping |
| MOQ | From 500 pcs per size and design |
| Sample | Structural and printed sample options available |
Every self-sealing mailer project can be developed according to the product and fulfillment process.
Customers can specify the box dimensions, corrugated board grade, exterior artwork, inside printing, adhesive position and optional opening feature.
Additional options can include custom inserts, branded inside-lid messages and selected surface finishes where compatible with the chosen corrugated material and printing process.
For bulk production, we recommend confirming the box dimensions, packed product weight, artwork and closure structure during sampling before the final production run.
Self-sealing corrugated mailers are particularly suitable for businesses that pack products individually for direct delivery to customers.
Typical applications include apparel and fashion orders, beauty and personal care products, accessories, lifestyle goods, subscription products, stationery, small retail products and promotional kits.
For fragile or multi-piece products, the mailer can be combined with a custom insert rather than relying only on the outer corrugated structure.
A standard corrugated mailer normally closes with folding tabs, locking flaps or additional external tape.
A self-sealing mailer adds an adhesive closure directly to the box. The release liner is removed during packing, allowing the flap to be pressed into place without applying a separate strip of packing tape.
This can be useful when packing speed, a cleaner finished appearance and a consistent sealing process are important.
If your project does not require an adhesive closure, a conventional custom mailer box may be a more suitable and economical structure.
A self-sealing mailer box is a corrugated shipping box with an adhesive strip integrated into the closing flap. The protective release liner is removed during packing and the flap is pressed down to seal the box.
The integrated adhesive closure is designed to seal the box without adding a separate strip of packing tape across the main closing flap. Final structural requirements should still be confirmed according to the box size, packed weight and shipping conditions.
Yes. An easy-open tear strip can be incorporated into the structure when required. The adhesive strip is used for sealing, while the tear strip is used for opening.
Yes. Exterior-only printing or combined interior and exterior printing can be produced according to the artwork and selected material.
Yes. Dimensions can be developed according to the product size, packed quantity, insert requirements and required internal clearance.
For many custom corrugated mailer projects, MOQ starts from 500 pcs per size and design. Special materials, dimensions or additional components may affect the final MOQ.
Yes. Sampling can be used to check dimensions, structure, adhesive position, printing and product fit before bulk manufacturing.
Send us your product dimensions, packed weight, required quantity and artwork requirements.
Our team can recommend a suitable corrugated grade, develop the box dimensions and confirm the peel-and-seal closure structure before production.
Premium materials and in-house finishing options to match every brand’s packaging vision.
250-400 GSM, natural brown or bleached white. Ideal for mailers and eco-friendly packaging.
1200-1500 GSM premium grey board for rigid gift boxes and luxury retail packaging.
157-350 GSM coated art paper. Smooth surface for high-resolution CMYK printing.
E / F / B flute options for shipping boxes and protective mailer packaging.
Gold, silver, rose gold, or holographic foil for premium logo finishing.
Raised logo detail. Adds tactile premium feel without extra color cost.
Glossy highlights on a matte surface. Perfect for making logos stand out.
Velvet-like tactile finish. Popular for luxury skincare and jewelry packaging.
Recessed logo detail. Adds tactile premium feel without extra color cost.
Protective surface lamination. Enhances color depth and extends packaging lifespan.
A 10-year Guangzhou packaging factory serving 600+ brands across the US, Europe, and Australia.
We operate our own 6,000 sqm facility in Guangzhou with full in-house production — no middlemen, no outsourcing. From sheet printing to final packing, every step happens under one roof.
Our equipment includes Bobst die-cutting lines for precise creasing, Heidelberg 5-color offset presses for color-accurate printing, and automated gluing machines that keep lead times to 15-22 days, even on complex custom orders.
Send us your artwork or spec sheet — we’ll get back with a quote, material samples, and 3D mockup within 24 hours.
