Product Overview
These polyethylene waterproof postage bags feature sturdy self-sealing tape that creates a permanent, tamper-proof seal. So it can deliver all your packages reliably. This bag is made of polyethylene, so you don't need expensive shipping boxes and tapes for your shipping. You can peel and seal each package in seconds, increasing your efficiency and saving on shipping supply costs.The waterproof postage bags are popular and affordable alternative to standard packaging. Our polyethylene mailing bags will help you reduce shipping costs while increasing your efficiency. These mailing bags are great for shipping clothing and apparel or other non-fragile items. The bag also acts as an extra layer of protection to protect items and boxes during shipping.
Features of Waterproof postage bags
Recyclability: Made of recyclable materials, helping to reduce resource waste and environmental pollution.
Durability: Usually made of wear-resistant and tear-resistant materials and has a certain service life.
Lightweight: Compared with traditional packaging materials, recyclable express parcel shipping bags are generally lighter, helping to reduce transportation costs.
Customizability: Size, color and printing can be customized according to customer needs to enhance brand image.
Application of Waterproof postage bags
E-commerce packaging: Suitable for product packaging and express transportation on various e-commerce platforms.
Item mailing: Used to mail documents, contracts and other documents. Suitable for mailing various samples, such as clothing, accessories, etc.
Food packaging: Suitable for packaging and transportation of lightweight food.
Advantage of Waterproof postage bags
Protect items: Provide good packaging protection to prevent items from being damaged during transportation.
Environmental awareness: Comply with corporate social responsibility and demonstrate the company's concern for environmental protection.
Enhance brand image: Corporate logos and environmental protection signs can be printed to enhance brand image.
Recyclable express parcel shipping bags have the advantages of environmental protection, economy, and practicality.
They are a popular packaging choice and are widely used in e-commerce, logistics, express delivery and other industries.
Custom Size
| Size (Width x Length + Lip) | Thickness (Standard) | Common Use Case |
| 6" x 9" + 2" | 2.0 - 2.5 Mil | Jewelry, cosmetics, small accessories |
| 10" x 13" + 2" | 2.5 - 3.0 Mil | T-shirts, leggings, magazines |
| 12" x 15.5" + 2" | 2.5 - 3.5 Mil | Jeans, hoodies, lightweight sweaters |
| 14.5" x 19" + 2" | 3.0 - 4.0 Mil | Large jackets, bedding, plush toys |
| 19" x 24" + 2" | 3.5 - 4.5 Mil | Multiple items, shoeboxes |
Packaging Method
Inner Packaging: Bundled in units of 50 or 100 pieces, wrapped in heat-shrink film or protective bags.
Outer Packaging: Packed in high-strength, extra-thick corrugated cardboard cartons to prevent compression damage during transit.
Palletization: Large-volume orders are supported by palletized shipping to ensure safe handling and loading/unloading.
FAQ
Q1: Can I customize the logo and colors?
A: Yes, we offer OEM/ODM customization services, including logo printing.
Q2: Do these bags comply with environmental regulations?
A: Yes, the biodegradable versions comply with the 2025 regulations for logistics packaging as well as RoHS certification standards (utilizing recyclable materials).
Q3: What is the lead time for custom orders?
A: Order delivery typically takes 15–35 days; expedited requests can be arranged upon negotiation.
Q4: How do I choose the appropriate thickness?
A: For small, lightweight items, we recommend a thickness of 50–60μm; for heavier or fragile items, we recommend a thickness of 80–100μm.
Q5: Is your printing ink eco-friendly?
Yes, we use eco-friendly water-based inks. They not only produce vibrant colors but are also non-toxic and odorless, meeting international export standards.
Q6: Do shipping labels adhere securely to the bags?
The surface of our bags undergoes a corona treatment process, resulting in excellent surface tension. This ensures that all types of thermal shipping labels adhere firmly and do not peel off.
Q7: Can you provide free samples?
We can provide free stock samples in existing sizes for you to test the material quality and seal strength; you only need to cover the shipping costs.
production procedure
Service Content：
| Service Content： | The company provides OEM and ODM services to meet the diverse needs of different customers |
| Production using recycled materials | Many of our products contain at least 30% recycled content, avoiding the additional cost pressures of increased taxes on imported plastic packaging. |
| Certificate | ISO14001, ISO9001, SGS-REACH, SGS-LDPE polyethylene bag (30% recycled material), USB TEXT5873-GRS-2022-01 |
| Packaging method | Boxed, bagged, custom packaging |
| Delivery time | Usually about 35 days after receiving advance payment and confirming all details |
| Sample/supply quantity | 3-7 days. Some of our samples are free, and some are chargeable. Can supply more than 50 containers per month |
| Minimum order quantity | According to specifications, between 100kgs-1000kgs |
| Price | Depends on size, thickness, packaging and printing |
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