Self-adhesive C4 envelope MAILmedia 38205/7, kraft brown, 90 g/m², 15.2 g (packaging weight spec)

Self-adhesive C4 envelope MAILmedia 38205/7 in kraft brown is made from 90 g/m² paper and sized to hold A4 documents flat without folding. The envelope features a peel-and-seal closure for quick and reliable sealing, and its natural kraft colour provides a neutral, professional appearance for business correspondence, catalogues and promotional materials. The construction balances durability and flexibility for routine mailing and document storage.

Advantages

The envelope’s 90 g/m² kraft paper delivers a sturdy yet lightweight solution that resists tearing during handling and transit. The peel-and-seal closure eliminates the need for moisture or additional adhesives, ensuring fast preparation while maintaining a secure seal. Its C4 format accommodates A4 sheets and unfolded documents, reducing creases and preserving presentation quality. The kraft brown finish conceals minor marks and offers a natural, recyclable appearance compatible with standard office and mailing systems.

Suitable for

• Mailing A4 documents, reports and catalogues without folding
• Sending promotional materials, brochures and single-sheet publications
• Office filing and short-term document storage
• Enclosures for invoices, contracts and printed marketing items

Key specifications

• Format: C4, fits A4 documents unfolded
• Material: kraft paper
• Paper weight: 90 g/m²
• Closure: self-adhesive peel-and-seal strip
• Colour: kraft brown
• Packaging weight specification: 15.2 g

How to use

Insert A4 documents into the envelope so that edges align with the sides to avoid curling. Peel off the protective strip to expose the adhesive and fold the flap down firmly along the seal to close. Press along the sealed edge to ensure full adhesion. For bulk mailing, load sealed envelopes into suitable mail trays or boxes and label or address them according to postal requirements.

Recommendations

Store envelopes flat in a dry, cool place to prevent warping or moisture absorption. Avoid prolonged exposure to direct sunlight or high humidity to maintain the adhesive performance. For important or time-sensitive documents, verify postal service size and weight limits before sending and consider additional protection such as cardboard stiffeners if heavier contents are enclosed.