Product Overview
Manufactured by Guangdong Bincai Color Printing Co., Ltd., this double-wall corrugated mailer box integrates a self-sealing adhesive strip with easy-tear perforation — eliminating tape, reducing fulfillment labor, and delivering a premium branded unboxing experience. The BC-flute (6.0mm) or EB-flute (4.5mm) double-wall construction provides 32–44 ECT crush resistance and 1,800+ kPa burst strength, tested to ISTA 1A transit standards. Suitable for apparel, cosmetics, electronics, food products, and subscription box services shipping via Amazon FBA, Shopify, or direct-to-consumer channels. Full-color flexo or offset litho printing on white-top kraft liner with water-based inks for eco compliance. With 22 years of manufacturing excellence, 18,000 sqm of factory space, and a daily output of 1.7 million boxes, Bincai delivers consistent quality at competitive prices.
Customization Options
| Option |
Available Choices |
| Flute Construction |
BC-flute 6.0mm, EB-flute 4.5mm, single-wall B-flute 3.0mm |
| Liner Material |
125–200gsm kraft (outside), 125–175gsm kraft (inside), white-top 150–200gsm |
| Print Method |
Flexo 1–3 color, offset litho 4-color CMYK + Pantone |
| Closure System |
Self-sealing adhesive + tear strip, standard tape-seal, peel-and-seal flap |
| Size Range |
150×100×50mm to 600×400×400mm (FBA-compliant sizing) |
| Adhesive Grade |
Hot-melt pressure-sensitive, temperature-stable -20°C to 60°C |
| Additional Features |
Die-cut handles, perforated tear panels, interior branding, QR code printing |
| MOQ |
1,000 units (standard sizes), 3,000+ (custom dimensions or tooling) |
Production Specifications
- Press: Heidelberg 7+1 UV and KBA 1050 4-color offset — ±0.15mm print registration, Pantone spot color matching
- Corrugator: 2.5m wide high-speed single-facer — B/C/E/F flute profiles, automatic splice
- Die-Cutting: Bobst flatbed die-cutter, box blank tolerance ±0.15mm, rotary die-cutter for high-volume runs
- Gluing: Fully automatic corrugated box gluing and folding line with inline quality inspection
- Ink System: Water-based flexo inks, soy-based offset inks — VOC compliant, FSC certified paper sourcing
- Daily Capacity: 1.7M color boxes + 220K+ gift boxes across dual 18,000 sqm factory
- Certifications: ISO 9001:2015 Quality Management, FSC Chain-of-Custody
Production Quality & Testing
| Test |
Standard |
Specification |
| Edge Crush Test (ECT) |
TAPPI T-811 / ISO 3037 |
32–44 lb/in (BC-flute double-wall) |
| Burst Strength (Mullen) |
TAPPI T-810 / ISO 2759 |
1,800+ kPa |
| Flat Crush (FCT) |
TAPPI T-808 / ISO 3035 |
350+ kPa |
| Glue Bond Strength |
TAPPI T-813 |
≥80% fiber tear |
| Drop Test |
ISTA 1A |
10-drop sequence, 760mm |
| Adhesive Temperature Cycle |
Internal |
-20°C to +60°C, 24hr dwell, no peel |
| Tear Strip Consistency |
Internal |
Clean single-tear, no jagged edges |
| Moisture Content |
TAPPI T-412 |
7.5–9.5% |
| Dimensional Verification |
ISO 2859-1 AQL 2.5 Level II |
±2mm per 600mm |
| Visual Inspection |
ISO 2859-1 AQL 2.5 Level II |
Accept ≤1.0% major |
Industry Applications
| Application |
Configuration |
Key Feature |
| Amazon FBA Fulfillment |
FBA-compliant sizes, barcode-ready |
ISTA 1A certified transit |
| Apparel E-Commerce |
Poly-bag + mailer combo |
Branded full-color print |
| Cosmetics Subscription |
Custom insert + mailer |
Premium unboxing experience |
| Small Electronics |
E-flute double-wall + foam |
Anti-static liner option |
| Food Product Shipping |
Kraft liner + water-based ink |
Food-grade compliance |
| DTC Branded Packaging |
White-top full-color litho |
Retail-ready presentation |
Why This Double-Wall Self-Sealing Mailer
Standard single-wall corrugated mailers fail when products exceed 2kg or transit distances exceed 500km. This double-wall self-sealing mailer eliminates the two most common e-commerce fulfillment pain points: crush damage from inadequate wall strength, and packing-line bottlenecks from manual taping.
| Factor |
Standard Single-Wall Corrugated Box |
This Double-Wall Self-Sealing Mailer |
| Wall Construction |
Single B-flute or C-flute (3.0mm) |
BC-flute (6.0mm) or EB-flute (4.5mm) double-wall |
| Edge Crush Test (ECT) |
23–29 lb/in (TAPPI T-811) |
32–44 lb/in — 40–52% stronger |
| Burst Strength (Mullen) |
1,100–1,400 kPa |
1,800+ kPa — 30–60% higher |
| Flat Crush (FCT) |
180–250 kPa |
350+ kPa — nearly 2× resistance |
| Transit Certification |
Uncertified or basic ISTA 2A |
ISTA 1A — 10-drop sequence at 760mm |
| Closure Method |
Manual tape (10–15 sec/box, tape gun required) |
Self-sealing adhesive strip (2 sec/box, no tools) |
| Adhesive Temperature Range |
N/A (tape fails below -5°C) |
-20°C to +60°C — stable through cold-chain and summer warehouses |
| Consumer Opening |
Knife or scissors required |
Perforated tear strip — clean single-tear, no tools |
| FBA Compliance |
Manual size verification needed |
FBA-ready sizing 150×100×50mm to 600×400×400mm |
| Packing Labor Cost |
$0.08–0.12/box (tape + time) |
$0.02–0.03/box (peel and press) — 75% labor savings |
Bottom line: For any product over 1kg shipping more than one zone, this double-wall self-sealing mailer reduces damage claims by an estimated 35–50% (based on ECT/burst differential) while cutting per-box packing time from 12 seconds to under 3 seconds. At 1,000 shipments/day, that’s 2.5 labor-hours saved daily — paying for the wall upgrade within the first week.
Why Choose Bincai
| Feature |
Detail |
| 🏭 Experience |
22 years since 2003 |
| 📐 Factory |
18,000 sqm dual factory (10,000+8,000 smart factory) — KBA 1050, Heidelberg 7+1 UV, Bobst SP 102 BMA, 2.5m corrugator |
| ✅ Quality |
ISO 9001:2015 certified — full batch traceability, inline QA inspection |
| 🌿 Eco |
FSC Chain-of-Custody certified, water-based inks, recyclable corrugated |
| 🚀 Capacity |
1.7M+ color boxes + 220K+ gift boxes daily across 3 shifts |
| 🎨 Custom |
Any size, flute, liner, printing, adhesive, or closure configuration |
| 📦 MOQ |
1,000 units (standard), 3,000+ (custom tooling) |
| 🆓 Sample |
Free pre-production sample (freight collect), 5–7 working days |
| 🌍 Shipping |
Worldwide DHL/FedEx/UPS/Sea from Foshan, Guangdong |
