Guardian Envelopes - C5 - Manilla - Pack 250

Guardian heavy-duty pocket envelopes are crafted from heavyweight 130gsm manilla paper, offering e...

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Office StationeryNew Guardian Pocket Envelope C5 Self Seal Plain 130gsm Manilla Pack
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UK Office Direct Envelopes Pocket 125 Gsm Manilla C5 [Pack 250] -
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Product Information

Full details

Designed for office managers, legal professionals, and small business owners, the Guardian C5 Manilla Pocket Envelopes offer a robust solution for mailing brochures, reports, and critical business documents. These heavy-duty envelopes provide superior protection during transit thanks to their 130gsm paper weight and convenient self-seal closure, though the ribbed texture and professional sheen may be slightly thicker than standard office envelopes, requiring careful handling during high-volume automated insertion.

All features

Model Part NumberD26103
BrandGuardian

Extended Product Information

FAQs

What size paper fits in these envelopes?

These C5 envelopes are designed to hold A5 documents flat, or A4 paper folded exactly in half.

Does the self-seal adhesive require water?

No, the self-seal strip is pressure-sensitive and requires only firm pressure to create a permanent bond.

Are these envelopes opaque?

The 130gsm heavyweight paper is quite thick, which provides high opacity to prevent sensitive content from being visible from the outside.

Can I feed these through a laser printer?

Yes, but use the manual bypass tray if available to prevent the envelopes from taking a sharp turn through the paper path.

How many envelopes are in one pack?

Each pack contains 250 envelopes.

Troubleshooting

Adhesive strip not sticking

Ensure the envelope flap is free from dust and debris; apply firm, even pressure along the entire length of the flap for 5 seconds.

Printer jamming during address printing

Ensure the envelope is fed straight, not angled. Check that the printer 'Media Type' is set to thick paper or cardstock to allow for proper transport.

Pros and Cons

Pros

  • Superior paper thickness prevents tearing in transit
  • Time-saving self-seal adhesive eliminates manual mess
  • Professional appearance suitable for formal mailings
  • Standard C5 sizing ensures compatibility with most document types

Cons

  • Heavier material may impact postage costs for large mailings
  • Ribbed texture may not be compatible with all inkjet printers
  • Higher unit weight compared to lightweight parchment alternatives

Setup, Compatibility & Care

To ensure the best results, store these envelopes in a cool, dry place to prevent premature activation of the self-seal adhesive. Exposure to direct sunlight or high humidity can cause the adhesive strip to degrade or adhere incorrectly. If you intend to print directly onto the envelope, it is recommended to perform a test pass through your printer settings; because of the ribbed texture and heavy paper weight, set your printer to 'Heavy' or 'Cardstock' mode to ensure proper toner bonding and avoid paper jams. Always align your printer guides strictly to the 229mm x 162mm dimensions to ensure centered addresses.

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