# Poly Mailers Custom Envelope Mailing Bags Co-EX LDPE Self-Sealing

Discover high-quality custom envelope poly mailing bags designed for secure shipping and delivery packaging. Manufactured from durable co-extruded LDPE material with a firm edge sealing, these mailing bags provide dependable protection for various commercial applications. Featuring a convenient peel-and-seal closure equipped with destructive glue, they ensure a permanent and tamper-evident seal for your shipped items.

## Product Features and Advantages

-   Constructed from sturdy co-extruded LDPE material with robust edge sealing to prevent breakage.
-   High-slip poly surface enables fast and smooth product insertion during packing operations.
-   Secure peel-and-seal closure utilizes strong hot-melt destructive glue that cannot be easily opened once sealed.
-   Supports customized gravure printing up to 10 colors using CMYK or Pantone color matching.
-   Available in multiple colors such as rose gold, blue, purple, green, yellow, and custom shades.

## Specifications

-   Product Name: Custom Envelope Poly Mailing Bags
-   Material: Co-EX LDPE
-   Sizes Available: 6x10 inches, 10x13 inches, 15x25 inches, A3, A4, A5, and custom dimensions
-   Sealing Type: Self-adhesive seal with destructive glue
-   Thickness: 3.5 mil / Custom Demands
-   Certifications: ISO14001:2015, ISO9001:2015, BSCI, SGS

## Industrial Use Cases

-   Apparel and clothing delivery packaging
-   Mobile phones and electronic accessories shipping
-   Cosmetics, jewelry, and photo frame mailing

## Frequently Asked Questions

### What material are these poly mailers made of?

They are constructed from co-extruded LDPE (low-density polyethylene) material offering durability and flexibility.

### Are these mailing bags customizable with a logo or brand colors?

Yes, they support custom printing up to 10 colors using gravure printing with CMYK or Pantone color matching.

### What kind of closure do these poly mailers use?

They feature a secure self-adhesive peel-and-seal closure utilizing destructive glue for enhanced tamper resistance.

### What sizes are available for ordering?

Standard sizes include 6x10 inches, 10x13 inches, 15x25 inches, A3, A4, and A5, with fully customizable sizing options available upon request.

## Details

- **Price:** 0.09 EUR
- **Vendor:** Tidesmit
- **Type:** Poly Mailers
- **Tags:** MAILERS

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Black / Costomized Size | 0.09 EUR | In stock |
| Black / 10*13'' | 0.09 EUR | In stock |

## Images

- Black poly mailer shipping envelope with folded edge and adhesive flap
- Black plastic shipping mailer envelope held in hand
- Black poly mailer shipping envelope with reinforced seam lines
- Poly mailer production equipment and conveyor line inside a factory
- Group of people posing indoors at a workshop event
- Industrial building exterior with people posing in front of entrances
- Black poly mailer shipping envelope stack with glossy finish and straight edges

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> Source: [Tidesmit](https://tidesmit.com/products/custom-plain-for-poly-mailer-express-packing-envelope-durable-polythene-delivery-plastic-packaging-for-shipping-mailing-bags)
> Updated: 2026-09-18