Colored Poly Mailers — Transparent Specs, Flexible MOQ, Risk-Free Verification
Professional B2B Colored Packaging Solutions for E-Commerce Brands
E-Commerce Sellers
1200+
Lowest MOQ Order
100 pcs
Report Verifiable Online
SGS Certified
Quality Guarantee
30-Day
Verifiable Quality Parameters
B2B packaging procurement hinges on one question: can you verify quality before payment? Most suppliers either offer vague material descriptions or hide key parameters behind “trade secrets.” Buyers cannot assess whether products meet their needs until after they’ve paid. This information gap drives up trial costs, invites quality disputes, and damages brand trust.
Our approach is transparency. Every core parameter—thickness, tensile strength, tear strength—is verifiable through SGS certification report numbers posted on our official website.
E-commerce sellers face two recurring problems with poly mailers: package breakage during transit and poor unboxing experiences that hurt brand perception. We’ve addressed both through upgraded physical specifications.
Edge seal strength now exceeds 40N, compared to the industry average of 30N. Bags maintain integrity through -20°C transport conditions without delaminating or becoming brittle. We use 100% new PE material—no recycled content, no fillers. This eliminates odor at the source. Every bag undergoes 96 hours of ventilation treatment before shipment. We back this with an odor-free guarantee: if any smell is detected within 7 days of receipt, we replace the order and cover return shipping.
Packaging in today’s competitive e-commerce market is not just protective material—it’s the first brand touchpoint. Savvy sellers understand that low-priced packaging often carries hidden costs through higher breakage rates and negative feedback. Our transparent parameters let buyers make data-driven decisions instead of relying on supplier claims.
Specifications Overview
Size Options
- S (6×9″) — Small items: accessories, jewelry, lightweight apparel
- M (9×12″) — Most versatile, fits 80%+ of e-commerce categories
- L (12×15.5″) — Medium-large items: clothing, shoe boxes, multi-piece sets
- XL (14.5×19″) — Large items: garments, plush toys, pillows
- Custom Size — Available, MOQ 500 pcs
Thickness Options
- 2 mil (0.02mm) — Recommended for items under 1kg; lightweight and cost-effective
- 3 mil (0.03mm) — Balanced choice; capacity up to 3kg
- 4 mil (0.04mm) — Heavy-duty; capacity up to 5kg
Color Options
- 12 in-stock colors: Black, White, Pink, Blue, Green, Purple, Red, Yellow, Orange, Gray
- Custom colors: Pantone color matching available, MOQ 500 pcs
Material Structure
Our colored poly mailers use a three-layer co-extruded PE composite—the most advanced process currently available.
The outer layer handles color printing. Food-grade color masterbatch delivers vibrant, long-lasting, non-toxic colors. The middle layer provides structural reinforcement. EVA modified materials boost toughness and puncture resistance. The inner heat-seal layer uses low-density polyethylene (LDPE) for consistent seal strength and clean tearability.
This design achieves rigid-flex balance. The outer layer’s rigidity supports print quality and stacking stability. The middle layer’s toughness resists impact and punctures during transport. The inner seal layer ensures reliable sealing performance.
Compared to single or double-layer alternatives, our three-layer co-extrusion delivers approximately 15% higher tensile strength and 20% higher tear strength at equivalent thickness. The cost premium is only 5-8%—exceptional value.
Four Core Quality Tests
≥20 MPa
Far exceeds industry avg of 15-18 MPa
≥40 N
<0.3%
PASS
All products undergo independent SGS third-party testing. Test reports ship with each order. Report numbers are verifiable in real-time at www.sgs.com.
Flexible MOQ & Tiered Pricing
Minimum order quantity anxiety is a real, often-overlooked pain point in B2B procurement. Traditional suppliers set high MOQs—1,000, 2,000, even 10,000 pieces like Uline. This excludes small and medium e-commerce sellers who cannot absorb large inventory commitments.
These sellers face a false choice: low-price suppliers sacrifice quality and service, while quality suppliers require inventory risk and capital commitment. Our solution: the industry’s lowest MOQ at just 100 pieces. Verify product quality without significant risk.
B2B procurement follows a verify-trust-scale logic. Buyers need to confirm product parameters match actual needs before committing to larger orders. Our 100-piece MOQ eliminates not just a price barrier but a trust barrier. Ordering 100 pieces delivers the same quality, same parameters, same service as our largest accounts—a true sample test without the sample price.
This zero-barrier verification model has worked for 1,200+ e-commerce sellers. Most started with 100-200 piece initial orders. After 2-3 reorders, they scaled to 500-2,000 pieces monthly.
Our tiered pricing rewards larger orders. As volume increases, per-unit production costs, logistics efficiency, and overhead allocation decrease—and we pass those savings to buyers. Larger orders also qualify for faster lead times. During peak seasons—Double 11, Black Friday, holiday periods—this competitive advantage matters.
Order Quantity & Pricing Tiers
| Order Quantity | Lead Time | Price Tier | Best For |
|---|---|---|---|
| 100-499 pcs | 7 business days | Base price | Sample testing / New product trials |
| 500-999 pcs | 5 business days | ~10% off | Small seller routine restocking |
| 1,000-4,999 pcs | 3 business days | ~15% off | Growing e-commerce primary stock |
| 5,000+ pcs | 3 business days | Custom pricing | Large sellers / Brand owners |
All prices are EXW (Ex Works) including tax. Shipping costs calculate separately based on delivery address and shipping method. Quotes remain valid for 7 days. Bulk orders can lock in pricing.
Sample Policy
First-time inquiries receive free samples. One sample per specification, maximum 3 samples per customer (different sizes/thicknesses/colors), valued at no more than $50. Our sales engineer confirms your requirements before shipping to ensure samples match your actual application.
Samples ship via SF Express/DPE Air, arriving in 1-3 days. Shipping charges are collect.
Sample process: Submit application online → Sales team confirms requirements within 24 hours → Samples ship within 48 hours → Feedback within 7 days of receipt.
Customers with unsatisfactory samples pay nothing. We provide professional problem analysis and improvement suggestions. Customers who test samples and place orders have sample fees fully credited against their first order—effectively free.
Environmental Certifications & Verified Compliance
Environmental compliance is an increasing factor in B2B procurement decisions. EU market sellers face the EU Green Deal and Packaging and Packaging Waste Directive—both impose strict requirements on imported packaging.
Market noise around “eco-friendly packaging” is significant. Some suppliers claim “degradable” but require industrial composting conditions. Others claim “recycled content” without clear sourcing or percentages. Still others have certifications but the validity has expired or doesn’t cover actual products.
Our approach: complete certification, verifiable numbers, transparent information. We hold SGS and ROHS certifications—the two most authoritative third-party environmental certifications. We label each shipment’s certification number directly on the packing list and test report. Customers verify on the SGS website whether the batch passed testing, whether the test date is current, and whether test items cover actual materials and processes.
PLA biodegradable material deserves honest explanation. PLA (polylactic acid) originates from plant starch and decomposes under industrial composting conditions. However, home composting cannot achieve the required temperature (>60°C) and humidity, limiting actual decomposition. For buyers with genuine environmental concerns, we recommend recycled PE—source-traceable recycled PE offers physical performance close to virgin material without special decomposition conditions, and it enters conventional recycling systems.
SGS Certification — Verifiable Report Numbers
Verification path: www.sgs.com → Services → Chemical & Materials → Verification Service → Enter Report Number
Each shipment includes an SGS report marked with a unique Report Number. The report shows: client name, product description, test date, testing standards, test equipment model, and specific data for each indicator. Reports cannot be forged or altered.
ROHS EU Compliance
RoHS (Restriction of Hazardous Substances) is the EU’s directive limiting hazardous substances in products. While packaging materials fall under REACH and Packaging Directives, major e-commerce platforms (such as Amazon) and brand owners typically require RoHS compliance as a supplier qualification.
Our colored poly mailers passed RoHS 2.0 testing (2011/65/EU and amendments), confirming the absence of ten hazardous substances: Lead (Pb), Mercury (Hg), Cadmium (Cd), Hexavalent Chromium (Cr6+), Polybrominated Biphenyls (PBB), Polybrominated Diphenyl Ethers (PBDE), DEHP, BBP, DBP, and DIBP. RoHS reports include unique numbers verifiable in the SGS system.
Factory Overview & Production Capacity
Our manufacturing facility operates under ISO 9001:2015 quality management system, located in Zhejiang Province with 15+ years of specialized poly mailer production experience. The factory spans 8,500 square meters with fully automated production lines designed for rapid order fulfillment at scale.
Production Capabilities
Monthly Output
- 5.2 million pieces standard production capacity
- Peak capacity: 7.5 million pieces/month
- 6 automated production lines
- 48-hour express order capability
Production Equipment
- 3 co-extrusion blown film lines
- 2 high-speed printing presses (up to 8 colors)
- 4 bag-making machines with die-cutting
- Automated packaging and quality inspection systems
Certification & Compliance
- ISO 9001:2015 certified facility
- SGS-verified production process
- ROHS-compliant materials sourcing
- Sedex/SMETA social compliance audit
Lead Time Assurance
Our production planning system allocates dedicated capacity for rush orders. Standard orders ship within the committed lead time; express orders (under 500 pieces) can dispatch within 48 hours for in-stock specifications. During peak seasons, we pre-position safety stock for confirmed clients to buffer against supply chain disruptions.
Product Specifications
| Specification Category | Parameter | Options / Value |
|---|---|---|
| Size | S (Small) | 6×9 inches (15×23 cm) |
| M (Medium) | 9×12 inches (23×30 cm) | |
| L (Large) | 12×15.5 inches (30×39 cm) | |
| XL (Extra Large) | 14.5×19 inches (37×48 cm) | |
| Custom Size | Any size, MOQ 500 pcs | |
| Thickness | 2 mil (0.02mm) | Load capacity ≤1kg / Lightweight apparel, accessories |
| 3 mil (0.03mm) | Load capacity 1-3kg / Standard e-commerce packaging | |
| 4 mil (0.04mm) | Load capacity 3-5kg / Heavy items, sharp products | |
| Color | Standard In-Stock | Black, White, Pink, Blue, Green, Purple, Red, Yellow, Orange, Gray (12 colors) |
| Custom Color | Pantone color matching / MOQ 500 pcs / 5% color tolerance | |
| Material | Virgin PE | 100% new LDPE / Premium quality, odor-free |
| Recycled PE | 30%-100% recycled content / SGS traceable / Eco-friendly option | |
| PLA Biodegradable | Industrial composting / 6-12 months degradation / Requires >60°C conditions | |
| Printing | Blank (No Printing) | MOQ 100 pcs |
| Custom LOGO | 1-3 colors / Screen or flexo / MOQ 500 pcs / 7-10 days | |
| Physical Properties | Tensile Strength | ≥20 MPa (both MD and CD) / Test: GB/T 1040.3 |
| Tear Strength | ≥40N (edge seal: 45-50N) / Test: GB/T 16578.1 | |
| Moisture Barrier | <0.3% absorption at 95% RH / 24 hours | |
| Waterproof | PASS / 30-min water spray test / No leakage | |
| Certifications | SGS | Per-batch reports with verifiable numbers / www.sgs.com |
| ROHS 2.0 | 2011/65/EU compliant / 10 hazardous substances free | |
| ISO 9001 | Manufacturing facility certified | |
| REACH | EU regulation compliance | |
| MOQ & Lead Time | Standard Blank | 100 pcs minimum / 7 business days |
| 500-999 pcs | 5 business days / ~10% discount | |
| 1,000-4,999 pcs | 3 business days / ~15% discount | |
| 5,000+ pcs | 3 business days / Custom pricing | |
| Payment Terms | New Clients | 30% deposit + 70% before shipment |
| Regular Clients (¥50k+) | 30-day payment terms | |
| Strategic Accounts | 60-90 day terms / Annual framework agreement | |
| Sample Policy | Free Samples | Up to 3 specs / Shipping collect / 48h dispatch |
| Sample Credit | Full credit on first order of same specs | |
| Warranty | Quality Guarantee | 30 days / Non-conforming replacement |
| Odor Complaint | 7 days / Full replacement + return shipping covered | |
| Delivery Delay | 1% deduction per day / Full refund if >7 days late |
Scenarios and uses
B2B colored poly mailers serve far more diverse applications than most imagine. Different industries, product categories, and sales platforms have distinct requirements: apparel categories prioritize print quality and size accuracy; accessories focus on lightweight and seal integrity; food categories require material safety certifications; cross-border sellers need international shipping standards and environmental compliance. A strong B2B supplier recommends products based on actual customer applications, not just pushes “standard products.”
Over six years, we’ve served 1,200+ e-commerce sellers and accumulated extensive cross-industry experience. Customer feedback data shows: apparel categories (especially women’s and children’s clothing) represent the largest user group at approximately 45% of shipments; accessories at 20%; home goods at 15%; beauty and skincare at 12%; other categories at 8%.
We’ve developed scenario-based product recommendations for high-frequency applications. Describe your product type, target audience, and primary sales platform. Our product engineers respond with the most suitable specifications and customization plans within 24 hours.
Application Scenarios
E-Commerce Platform Sellers
- Domestic platforms (Taobao/JD/Pinduoduo): 3 mil + economical colors (black/white) to control costs
- Amazon FBA: 4 mil + SGS/RoHS certified version for international standards
- Shopify: Custom LOGO + signature color schemes for brand focus
Brands / OEM Customization
- Colors matching brand VI system
- Sizes optimized for your specific product dimensions
- Custom LOGO MOQ starts at just 500 pcs
- 7-10 business day customization cycle
- Strategic accounts (20,000+ pcs annually) receive dedicated account manager
Retail / Wholesale Distributors
- Single order can include up to 20 different SKUs
- System automatically optimizes production scheduling
- Consolidated packing list and invoice
- 30-day payment terms available
Customer Reviews — Verified Data
B2B credibility requires more than C2C-style reviews. B2B buyers need specific endorsements: order volumes demonstrate supplier scale; usage duration proves long-term product stability; reviewer company names and job titles verify authenticity. Our customer reviews follow the “Four Haves” principle: company name, buyer title, specific procurement data, and actual usage duration.
“Our primary supplier selection criterion is supply stability—during peak promotions, our order volume is 5-10x normal. If a supplier can’t deliver, we lose not just sales but store ratings. Using their bags for over a year, they’ve never missed a deadline during any promotion, with 100% on-time delivery.”
“We ran tests: bags loaded with 2kg of children’s clothing dropped from 1 meter, their product achieved zero breakage versus approximately 1.5% breakage with our previous supplier.”
United Arab Emirates Top Maternal-Child E-Commerce · Purchasing Director Ms. Wang · 5,000 pcs/month · 18 months continuous
“We’re going for a premium aesthetic—packaging must reflect that. Their Pantone color matching is extremely accurate; the printed bags match our VI design colors with near-zero color difference. Consumer reviews frequently mention the packaging as ‘premium.'”
United States Apparel Seller · Owner Li · ~¥800,000 monthly sales · From 200 pcs initial to 1,200 pcs/month
“European and American customers have high environmental standards. Our previous regular poly mailers received ‘uneco-friendly packaging’ complaints that nearly affected our store ratings. Switching to their ROHS-certified version eliminated environmental complaints entirely, with consumers often mentioning ‘love this eco-friendly packaging’ in reviews.”
Netherlands Cross-Border E-Commerce · Supply Chain Director James · 3,000 pcs/month (40% custom LOGO)
Our Comparison with Competitors
| Dimension | Our Product | Uline | Sticker Mule | Typical Domestic Supplier |
|---|---|---|---|---|
| Minimum Order | 100 pcs | 10,000 pcs | 500 pcs | 1,000-5,000 pcs |
| Thickness Options | 2/3/4 mil, transparent data | Only “standard thickness” listed | Not transparent | Usually 1 thickness only |
| SGS Certification | Batch reports, verifiable online | No public SGS data | None | Rarely provided |
| Lead Time (Standard) | 7 business days | 3-5 business days | 5-7 business days | 10-15 business days |
| Custom LOGO | 500 pcs MOQ, 7-10 days | 10,000 pcs MOQ, very long | 500 pcs, 7 days | 2,000 pcs MOQ |
| Sample Policy | Free (≤3 pcs), ships in 48h | Charged, buyer pays shipping | Small sample fee | Usually unavailable |
| Payment Terms | 30-day terms for ¥50k+ accounts | Large enterprise clients only | Not available | Usually full prepayment |
Key Advantages: Compared to Uline and international brands, our MOQ threshold is 99% lower, enabling small and medium sellers to access equivalent quality standards. Compared to typical domestic suppliers, our parameter transparency, quality certification completeness, and after-sales service represent a generational advantage. Our positioning: “High-Quality Parameters × Flexible MOQ × Verified Certification.”
5 Steps to Complete Customization
First-time B2B customization customers often worry about complex processes, repeated communications, and delivery uncertainties. We’ve streamlined customization into 5 standardized steps, each with clear milestones and deliverables.
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Step 1: Requirement Submission & Confirmation
Submit preliminary requirements via website form, WeChat, or email: target product, estimated order volume, delivery requirements, and customization needs (size/color/LOGO). Our sales engineer responds within 24 hours with a standardized requirement confirmation form.
Step 2: Product Recommendation & Quotation
We provide 1-3 product options based on your requirements. Each option includes: detailed specifications, itemized quote breakdown, delivery schedule, and logistics recommendations. Free samples ship simultaneously for customers needing verification.
Step 3: Design Confirmation
Provide LOGO source files (AI/CDR/PDF format). We produce 1:1 renderings within 3 business days. Design revisions limited to 2 rounds; the third round incurs a small design fee. After final confirmation, both parties sign the Printing Approval Form.
Step 4: Production & Quality Inspection
Production scheduling auto-generates based on order confirmation time, with real-time progress updates. Each batch undergoes SGS quality inspection (batch inspection reports available upon request). Qualified products ship with automatically synced tracking numbers.
Step 5: Receipt Confirmation & After-Sales Follow-Up
We conduct two after-sales check-ins: at day 3 and day 7 after delivery. We confirm correct quantities/specifications, check for shipping damage, and offer initial usage support. Any quality issues qualify for unconditional replacement within 7 days with return shipping covered.
Frequently Asked Questions
Q1: Is the 100-piece minimum order for real? Any hidden conditions?
100 pieces is our genuine, no-hidden-conditions minimum order. Customers ordering 100 pieces receive exactly the same product quality standards, SGS certification reports, and after-sales service as our largest accounts. Our 100-piece MOQ policy enables buyers of any size to verify product quality with minimal risk. We believe our product quality speaks for itself and withstands testing. Note: Standard blank orders start at 100 pieces; custom sizes/colors/LOGO require 500-piece minimum due to machine setup costs and minimum production batch sizes.
Q2: How long does it take to receive samples?
Samples ship via SF Express/DPE Air, arriving in 1-3 days for 85% of mainland China. Applications confirmed before 4:00 PM ship same day; after 4:00 PM, ship next business day. Tracking numbers sync automatically after shipping. Upon receipt, we recommend: load target product, seal, simulate transport vibration, check seal strength, and test tear functionality. Contact us within 7 days if results are unsatisfactory—we cover all costs and provide professional analysis.
Q3: What's the custom LOGO process? How long does it take?
Custom LOGO requires vector source files (AI/CDR/PDF). We produce 1:1 renderings for confirmation within 3 business days. After design approval: 500-999 pcs approximately 7 business days; 1,000-5,000 pcs approximately 10 business days; 5,000+ pcs approximately 15 business days. LOGO printing supports 1-3 colors with 500-piece minimum. For multi-color or spot color requirements, contact our sales team for individual quotes.
Q4: Can delivery commitments be guaranteed? Will peak seasons cause delays?
We practice delivery commitment contractualization. Any delays caused by non-force-majeure factors result in compensation: 1% deduction per delayed day, full refund if delayed beyond 7 days. This is not marketing language—it’s confidence backed by production planning and supply chain management. Peak seasons (Double 11, Black Friday, pre-Christmas) do concentrate orders. We recommend ordering 15-30 days in advance. We offer peak season capacity lock: pay to reserve capacity, ship later as needed.
Q5: How do I verify SGS certification report authenticity?
Each shipment includes the batch inspection report marked with the SGS Report Number. Verification: open www.sgs.com → click Verify a Report → enter Report Number and verification code → system displays report details including: client name, product description, test date, testing standards, and measured values for each indicator. If you see “Report not found” or report info doesn’t match the product, contact us immediately.
Q6: What payment methods are supported? Is credit available?
We accept: bank wire transfer, corporate Alipay/WeChat Pay, and Letter of Credit (L/C, for cross-border orders and annual framework agreements). First-time clients pay in full. After receipt and quality verification, clients with cumulative procurement exceeding ¥50,000 may apply for 30-day payment terms. Annual strategic accounts may apply for 60-90 day terms with signed annual procurement framework agreements and corporate credit assessment materials.
Ready to eliminate seal failures and size mismatches from your supply chain?
Request a formal quote with your specifications. Response within 4 business hours.
RHK Packaging — ISO 9001:2015 Certified Manufacturer Since 2010
[email protected]