Product Video
Self Sealing Mailer Box
Self sealing mailer boxes feature a convenient peel-and-seal adhesive strip that eliminates the need for tape or additional closure materials. Made with corrugated B/E/F flute for superior protection, covered with 200-350gsm premium paper (white card/grey chipboard/black card/kraft/coated paper). Ideal for e-commerce shipping, subscription boxes, and retail packaging.
One-second seal saves up to 40% on packing labor costs.
$0.30 - $2.50 / pc
FOB China Port - Price varies by size, material & quantity
Get your quote in 2 hours + Free design consultation
Supply Chain Certification Support
Technical Specifications
Flute Type
B Flute (3mm), E Flute (1.5mm), F Flute (0.8mm)
Covering Paper
200-350gsm White/Grey/Black/Kraft/Coated
Closure
Peel & Seal Adhesive Strip
Size Range
Custom sizes from 100mm to 1200mm
Printing
CMYK, Pantone, Screen (200 LPI)
Finishing
Lamination, Foil, Embossing, Spot UV
MOQ
500 pieces
Lead Time
10-15 business days
Lamination
Gloss / Matte lamination for premium look and scuff resistance
Foil Stamping
Gold, silver, copper, and custom metallic foils for luxury branding
Embossing / Debossing
Raised or recessed texture for premium tactile feel
Spot UV
High-gloss UV coating on specific areas for contrast
Soft-Touch Lamination
Velvety matte finish for luxury cosmetic and retail packaging
Small
100-200mm L x 80-150mm W x 30-80mm H
Ideal for cosmetics, accessories, small electronics
Medium
200-400mm L x 150-300mm W x 80-150mm H
Ideal for apparel, books, home goods
Large
400-800mm L x 300-500mm W x 150-300mm H
Ideal for bulkier retail products, soft goods
Extra Large
800-1200mm L x 500-800mm W x 300-500mm H
Ideal for industrial parts, multi-item kits
Common Mistakes to Avoid
Wrong Flute Selection
Using B flute for fragile items when E or F flute provides better cushioning and a smoother print surface. Match flute to product fragility and print requirements.
Underestimating Material Weight
Choosing 200gsm covering paper for heavy products (>3kg). Use 300-350gsm covering paper with reinforced flute for heavy items to prevent box failure.
Ignoring Seal Strength
Standard peel-seal may not withstand long transit or cold storage. Specify high-tack adhesive for humid environments or extended storage conditions.
Wrong Covering Paper for Print
Kraft paper shows ink differently than white card. Always request a print proof when using kraft to avoid color mismatch surprises.
ROI Impact Analysis
Labor Savings
40%
Peel-and-seal closure eliminates tape application, reducing packing time per box by 3-5 seconds. ROI positive at 10,000+ boxes/month.
Shipping Cost
30%
Corrugated mailer boxes ship flat, reducing warehouse storage by 60% and enabling lower freight rates vs. rigid boxes.
Damage Rate
-70%
Corrugated B/E/F flute provides superior cushioning vs. rigid chipboard. Lower damage claims improve customer satisfaction and repeat orders.
Unboxing Experience
+85%
Self-sealing boxes deliver a clean, professional first impression. 72% of consumers say packaging affects their perception of brand quality.
Product Gallery
Standard brown kraft finish
Premium white card with matte lamination
Full CMYK custom printing
Gold foil stamping detail
Printing & Finishing Options
Offset Printing (CMYK)
Full-color photographic quality printing, 200 LPI screen ruling. Best for complex designs, gradients, and photographic images. Pantone color matching available.
Flexographic Printing
Cost-effective for large runs with simpler designs. Good for kraft and brown paper. Lower setup cost than offset for runs over 5,000 pieces.
Foil Stamping
Gold, silver, copper, holographic, and custom metallic foils. Perfect for logos, borders, and decorative elements that demand attention and luxury feel.
Embossing & Debossing
Raised (emboss) or recessed (deboss) text and graphics. Adds a premium tactile dimension that conveys quality and craftsmanship.
Spot UV
High-gloss UV coating applied to specific design elements against matte background. Creates visual contrast and highlights key brand areas.
Soft-Touch Lamination
Velvety matte coating that feels luxurious to the touch. Popular for cosmetics, premium retail, and subscription boxes targeting high-end consumers.
Production Process
Material Prep
B/E/F flute corrugated + covering paper selection
Printing
CMYK / Pantone / Flexo on covering paper
Lamination & Finishing
Laminate, foil, emboss, spot UV as specified
Die-Cutting
Precision cutting + peel-seal adhesive strip
Flat Packing
Flattened for shipping, easy to assemble
Material Structure
B Flute (3mm)
Good compression, standard protection
Best for: apparel, books, general merchandise
E Flute (1.5mm)
Smooth surface, excellent print quality
Best for: cosmetics, food, premium retail
F Flute (0.8mm)
Ultra-smooth, fine detail printing
Best for: electronics, small fragile items
Why Choose EcoPacki
20+ Years Experience
Factory-direct pricing with 20+ years of corrugated packaging expertise. We have produced over 50 million boxes for global brands.
Premium Materials
Only A-grade corrugated stock and 200-350gsm premium covering papers. No recycled low-quality materials that compromise structural integrity.
Rigorous QC
Every batch undergoes 5-step quality inspection: raw material test, printing check, die-cut inspection, assembly test, and final packaging review.
Dedicated Support
One-on-one account manager from inquiry to delivery. Response within 2 hours during business hours. Free design consultation included.
Full Certifications
ISO 9001, FSC available, and REACH compliant. Quality testing reports available upon request. Suitable for EU and US market requirements.
Transparent Pricing
FOB pricing with no hidden fees. Detailed quotation within 2 hours. Volume discounts automatically applied. Payment via T/T, PayPal, L/C.
Frequently Asked Questions
What is the difference between B, E, and F flute corrugated?
B flute (3mm thick) offers good compression strength and is the most common choice for e-commerce shipping. E flute (1.5mm) is thinner with a smoother surface ideal for premium print quality. F flute (0.8mm) is the thinnest, providing the best print detail but less protection for heavy items. For self-sealing mailer boxes, we recommend E flute for aesthetics or B flute for heavy products.
What covering paper options are available?
We offer white cardstock (best for full-color printing), grey chipboard (cost-effective, sturdy), black cardstock (sleek luxury look), natural kraft (eco-friendly, rustic feel), and coated art paper (premium print finish). All covering papers range from 200-350gsm depending on your weight and durability requirements.
How strong is the peel-and-seal adhesive?
Our standard peel-and-seal adhesive provides secure closure for items up to 5kg and withstands normal shipping handling. For heavy items over 5kg, cold storage applications, or humid environments, we recommend our high-tack adhesive upgrade (+10% cost). We also offer tamper-evident seal options for security-sensitive products.
Can I get a sample before placing a bulk order?
Yes. Sample orders of 5-10 pieces are available at cost ($50-150 depending on complexity) plus shipping. Samples are typically produced within 5-7 business days. For custom sizes or materials, sample MOQ starts at 1,000 pieces but a pre-production sample can be arranged for approval first.
What is the minimum order quantity?
MOQ is 500 pieces for standard sizes. For custom sizes, materials, or finishing options, MOQ starts at 1,000 pieces. The per-unit price decreases significantly as order quantity increases, so larger orders offer better unit economics.
Can I print my logo and brand design on the boxes?
Absolutely. We offer full custom printing with CMYK offset printing, Pantone color matching, flexographic printing, foil stamping, embossing/debossing, and spot UV. Your artwork file (AI, PDF, or EPS) is preferred. Our design team can also help with artwork preparation at no extra cost.
Are these boxes eco-friendly and recyclable?
Yes, our corrugated mailer boxes are 100% recyclable. We also offer FSC-certified materials upon request and use water-based inks. Biodegradable adhesive options are available. The corrugated structure can be easily flattened and recycled through standard paper recycling programs.
What industries use self-sealing mailer boxes?
Self-sealing mailer boxes are widely used in e-commerce, cosmetics and skincare, health and wellness, food and beverage, apparel and accessories, electronics accessories, subscription boxes, and premium retail packaging. The peel-and-seal closure is especially popular for subscription box services and direct-to-consumer brands.
What is the production lead time?
Standard production takes 15-20 working days. Sample production is 5-7 business days. Rush orders (8-10 days) are available with a 15-20% surcharge. Shipping options: sea freight (20-35 days), air freight (5-7 days), express (3-5 days), or railway (15-25 days).
Do you offer design services?
Yes, we provide free dieline templates and basic design consultation. For full custom artwork design, our in-house design team charges a nominal fee starting at $100 depending on complexity. Complex designs with full branding packages are quoted individually.
New Customer Offer
First-time customers get exclusive benefits:
Sample $50-150
Plain sample + shipping applies
5% Off
First bulk order discount
Free Design
Professional dieline assistance
Quality Control Process
Every order goes through our rigorous 5-step quality inspection
Raw Material Test
Flute compression, paper weight, burst strength
Printing Check
Color accuracy, registration, coverage
Die-Cut Inspection
Dimensions, clean cuts, seal strip alignment
Assembly Test
Peel-seal strength, flap alignment, flat-fold
Final Packaging
Bundle count, carton protection, labeling
How to Order
From inquiry to delivery - your complete ordering timeline
Inquiry & Quote
Submit specs - Quote within 24h
Design Confirm
Artwork review & dieline approval
Sample
Pre-production sample (3-5 days)
Production
30% deposit - 15-20 working days
QC & Ship
Inspection photos - 70% balance - Ship
Total timeline: ~4-7 weeks (sea freight) - ~3-4 weeks (air freight)
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