Envelope C4 Office Products with silicone tape 229×324 mm 90 gsm 50 pcs white

Envelope C4 Office Products with silicone tape 229×324 mm 90 gsm 50 pcs white are white paper envelopes designed for sending and storing A4 documents either flat or folded once. Each envelope is produced from 90 gsm paper and features a silicone self-adhesive tape closure that simplifies sealing without requiring additional glue or moisture. The C4 size (229×324 mm) accommodates unfolded A4 sheets and multiple documents, making these envelopes suitable for routine office correspondence, invoices, and archival use.

Advantages

The envelopes combine mid-weight 90 gsm paper with a silicone tape closure to provide a balance of strength and ease of use. The white finish delivers a neutral, professional appearance appropriate for business mailings and record-keeping. The pre-applied silicone tape seals quickly and reliably, reducing handling time and the need for additional sealing supplies. A pack of 50 offers a practical quantity for regular office operations without excess storage.

Suitable for

• Mailing A4 documents flat or A4 folded once
• Sending invoices, contracts and brochures
• Office correspondence and administrative paperwork
• Short-term or medium-term archival storage of paper documents

Key specifications

• Format: C4, external size 229×324 mm
• Material: white paper, 90 gsm weight
• Closure: silicone self-adhesive tape
• Pack quantity: 50 envelopes per pack
• Colour: white

How to use

Insert documents into the envelope so that papers lie flat and alignment is maintained for professional presentation. To seal, fold down the flap and press the silicone tape firmly along its length to activate the adhesive and ensure a secure closure. For added security during transport, consider reinforcing the flap with transparent tape or a label. Store unopened packs in a dry environment to preserve paper quality and adhesion performance.

Usage recommendations

Use these envelopes for standard office mailings where a clean appearance and quick sealing are priorities. Avoid overfilling beyond the envelope capacity to prevent tearing or compromised closure; keep packs in a cool, dry place to maintain the silicone tape’s effectiveness.