Cardboard Mailer ColomPac CP 151.010 self-adhesive closure, quick-assembly flat-packed shipping box

ColomPac CP 151.010 is a cardboard mailer with a self-adhesive closure engineered for quick assembly and flat-packed storage. Designed for shipping documents and small items, the mailer provides a tamper-evident seal without the need for additional tape. Its lightweight, recyclable construction reduces storage volume and speeds up packing workflows for e-commerce, postal and retail shipping operations.

Advantages

The mailer offers fast, tool-free assembly from a flat-packed state and a reliable self-adhesive strip that creates a secure closure with clear evidence of tampering. Constructed from recyclable corrugated board, it combines low weight with sufficient rigidity to protect contents during transit. The design minimizes packing time and storage space while supporting sustainable disposal or recycling streams.

Suitable for

• Shipping documents, certificates and thin printed materials
• Dispatching small, flat products such as thin electronics, accessories and samples
• E-commerce order fulfillment and returns
• Postal and courier shipments requiring tamper-evident closure

Key specifications

• Material: corrugated cardboard, recyclable
• Closure type: self-adhesive strip for tamper-evident sealing
• Format: flat-packed, quick-assembly mailer
• Protection level: lightweight impact and scratch protection for flat items
• Weight: lightweight construction to reduce postage costs

How to use

Fold the flat-packed mailer along the pre-scored lines to form the box shape, insert the contents ensuring they lie flat and central, remove the protective liner from the self-adhesive strip and press the flap firmly to create the seal. Check that the edges are properly adhered to ensure a tamper-evident closure before dispatch. For thicker contents, confirm that the item sits comfortably within the internal dimensions and does not force the closure open.

Usage recommendations

Store mailers flat in a dry environment to preserve the adhesive strip and cardboard integrity. Avoid exposing sealed mailers to prolonged moisture or heavy compressive loads during transport. For documents and thin items, include a stiffening insert if additional rigidity is required.