Product Video
Custom Self-Seal Mailer Boxes
Ship smarter with self-seal mailer boxes Our custom mailer boxes feature a built-in adhesive strip — just peel the release liner and press the flap down for a secure seal in seconds. No tape, no glue, no hassle. Made from durable corrugated B/E/F flute board with 200-350gsm cover paper for reliable protection during shipping while keeping weight minimal. Why Brands Choose Self-Seal Mailers: ✓ Peel-and-Seal — Instant secure closure, no tape or glue required ✓ Corrugated Protection — B/E/F flute board holds up to 10kg ✓ Lightweight Design — Reduces shipping costs while maintaining durability ✓ Versatile Applications — Perfect for e-commerce, subscription boxes, retail shipping ✓ Flexible MOQ — Low minimums to test designs before scaling Ideal for birthday parties, holiday promotions, wedding favors, bakery items, and any product that deserves a touch of whimsy and charm.
Self-seal design appeals to e-commerce businesses seeking efficient packaging with premium presentation.
Customized Pricing
FOB China Port ? Price varies by size, material & quantity
Get your quote in 24 hours + Free design consultation
Supply Chain Certification Support
Technical Specifications
Feature
Self-Seal Adhesive Closure
Options
Peel-and-Seal, No Tape Required
Material
Corrugated B/E/F Flute + Cover Paper 200-350gsm
Durability
Holds up to 10kg depending on flute grade. FDA-compliant materials available.
Printing
CMYK, Pantone, Full-color branding. Custom print area available.
Finishing
Gloss/Matte Lamination, Gold/Silver Foil, Spot UV, Soft-Touch, Embossing. Enhances visual appeal.
MOQ
Flexible MOQ. Sample orders available for quality verification.
Lead Time
Customized per order. Sample available.
Packaging
Flat-packed for efficient shipping. 200pcs/carton. Lightweight design reduces costs.
Gloss Lamination
High-shine reflective finish for vibrant colors and premium look.
Matte Lamination
Soft-touch elegant finish with anti-scratch properties.
Foil Stamping
Gold, silver, or metallic foil for luxury branding effects.
Embossing
Raised patterns for tactile premium feel and brand texture.
Spot UV
Highlight specific areas with glossy UV coating contrast.
Soft-Touch
Velvety texture for ultra-premium unboxing experience.
Quick reference for commonly requested sizes. Custom sizes available upon request.
Customized
Cosmetics, Jewelry, Small Gifts
Customized
Smartphone Cases, Accessories
Customized
Tablets, Books, Clothing
Customized
Electronics, Multiple Items
Customized
Heavy Items, Bulk Products
Customized
Premium Gifts, Large Items
Common Mistakes to Avoid
Weak Adhesive Strength
Key Consideration: Adhesive may lose effectiveness in high humidity or extreme temperatures.
Tip: Specify usage conditions - marine-grade adhesive available for humid environments.
Incorrect Flute Grade
Key Consideration: Using wrong flute grade results in insufficient protection or excess weight.
Tip: Request test samples with your actual product for real-world validation.
Overfilling Box
Key Consideration: Mailer boxes have weight limits based on flute grade and box dimensions.
Tip: Specify product weight for reinforced board or double-wall construction.
Storage in Humid Conditions
Key Consideration: Flat storage in damp conditions may affect adhesive performance.
Tip: Store in dry environment, consider moisture-resistant coating.
Pricing
Packaging Collections
Material Selection Guide
Choose the right materials for your packaging needs
📦Base Board (9 Options)
| Category | Available Materials |
|---|---|
| Paperboard | Corrugated Board / Greyboard / White Board / Black Board / Kraft Board / White-lined Chipboard / White-top Chipboard / Honeycomb Board / MDF Board |
🎨Surface Paper (15 Options)
| Category | Available Materials |
|---|---|
| Paper | Coated Paper / Offset Paper / Kraft Paper / Metallic Paper (Gold/Silver) / Pearl Paper / Touch Paper / Leatherette Paper / Art Paper / Cotton Rag Paper / Recycled Paper / Aluminum Foil Paper / Tracing Paper / Copy Paper / Glassine Paper / Holographic Paper |
🧵Surface Material (15 Options)
| Category | Available Materials |
|---|---|
| Fabric & Leather | Flannel / Leather / PU Leather / Genuine Leather / Vegan Leather / Linen / Canvas / Cotton Cloth / Silk / Non-woven Fabric / Oxford Cloth / Nylon / Polyester / Suede |
🛡️Interior Lining & Cushioning (25 Options)
| Category | Available Materials |
|---|---|
| Foam & Plastic | EVA Foam / Sponge / Pearl Cotton (EPE) / EPS Foam / XPS Foam / PU Foam / Molded Pulp / Blister Packaging (PVC / PET) / Plastic Tray |
| Paper-based | Greyboard Insert / Cardstock Insert / Folded Paper Insert / Corrugated Divider / Corrugated Roll / Honeycomb Board Insert |
| Fabric | Velvet Lining / Flannel Lining / Non-woven Bag |
| Bags & Fillers | OPP Bag / PE Bag / Cotton Bag / Linen Bag / Air Bubble Film / Air Column / Inflatable Bag / Paper Crinkle Fill |
💡 Need help customizing?
Need help customizing the material combinations for your specific product? Just share your product type and use case — I'll recommend the best pairing.
Finishing Options
Production Process
Factory Production Video
Shipping & Packaging
200 units per carton. Reinforced packaging ensures safe international delivery.
Supply Chain Capabilities
Daily Capacity
50,000+ pieces per day. Scale production to meet your demands.
Clients Served
500+ B2B clients worldwide. Trusted by global brands.
Global Export
Exported to 80+ countries. Reliable international shipping.
24/7 Support
2-hour response guaranteed. Dedicated account manager.
Why Choose EcoPacki
See how EcoPacki stands out from other packaging suppliers.
| Feature | EcoPacki | Others |
|---|---|---|
| fold-flat Design | Yes (Space Saving) | Fixed shape only |
| Free Plain Samples | Yes (shipping applies) | Charge for samples |
| Sample Refund | 100% refundable | Often not refundable |
| Response Time | 24 hours | 2-5 business days |
| Design Consultation | Free expert advice | Extra charge or none |
| Quality Assurance | Quality Assured | Varies significantly |
| MOQ Flexibility | From 200+ pcs | Often 1000+ pcs |
| Global Shipping | 80+ countries | Limited regions |
Perfect For
Frequently Asked Questions
What is your return/exchange policy?
Quality inspection is conducted upon receipt. Claims must be submitted within 7 days of receiving goods. Defective products are eligible for free replacements. Please provide photos and order details when filing a claim.
What is a self-seal mailer box?
Self-seal mailer boxes feature a built-in adhesive strip — just peel the release liner and press the flap down for a secure seal in seconds. No tape, no glue, or tools required. Made from durable corrugated B/E/F flute board.
What are the benefits of self-seal mailer boxes?
Self-seal mailer boxes offer instant secure closure, reduced packing time, and cost savings on tape and glue. The corrugated construction provides excellent protection while keeping shipping costs low due to lightweight design.
What flute grades are available?
We offer B-flute (standard, cost-effective), E-flute (thin, premium look), F-flute (ultra-thin, high-quality print), and combination flute grades. Your choice depends on protection level and print quality requirements.
What is the minimum order quantity?
MOQ varies by size and customization. Standard sizes start at 200-500 pieces. Fully custom sizes typically require 500-1000 pieces. Sample orders available for quality verification.
What printing and finishing options are available?
We offer offset printing, flexographic printing, embossing/debossing, foil stamping (gold/silver), spot UV, and soft-touch lamination for premium appearance.
What is the minimum order quantity?
MOQ is Flexible for standard sizes. Sample orders are available for quality verification.
Can I customize the size and printing?
Yes! We offer fully custom sizes, materials, printing (CMYK/Pantone), and finishing options. Full-color printing available on both inside and outside surfaces.
What industries use self-seal mailer boxes?
Self-seal mailer boxes are essential for e-commerce, retail shipping, subscription boxes, cosmetics, electronics, apparel, and any business shipping products directly to consumers.
Are self-seal mailer boxes eco-friendly?
Yes! Our corrugated mailer boxes are made from recyclable materials. We use water-based inks and offer FSC-compliant materials. Adhesive options include eco-friendly formulations.
What is the production lead time?
Standard production takes 10-15 business days after artwork approval and deposit. Sample production is 5-7 days. Rush orders (7-10 days) available with surcharge.
🎁 New Customer Offer
First-time customers get exclusive benefits:
Sample Available
Contact for details
Bulk Discount
Special pricing for first order
Free Dieline
+ Design artwork suggestions
Quality Control Process
Every order goes through our rigorous 5-step quality inspection
Raw Material Test
Paper weight, thickness, burst strength
Printing Check
Color accuracy, registration, coverage
Die-Cut Inspection
Dimensions, clean cuts, proper scoring
Assembly Test
Easy fold, secure closure, structural integrity
Final Packaging
Bundle count, carton protection, labeling
From inquiry to delivery — your complete ordering timeline
→ Quote within 24h
& dieline approval
sample (3-5 days)
15-20 working days
Balance & ship
Total timeline: ~4-7 weeks (sea freight) | ~3-4 weeks (air freight)