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Plain Envelopes

Our range of plain envelopes come in convenient multipacks, with a wide variety of colours and closures to choose from. Perfect for mailing documents or letters, our versatile envelopes are ideal for businesses and personal use. Don't forget to explore our address labels for a complete mailing solution. Upgrade your mailing room today with our range of envelopes and mailing bags.

137 products found
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Envelope DL 80gsm Self Seal White (Pack of 1000) WX3454
Envelope C4 115gsm Manilla Self Seal (Pack of 250) WX3461
Envelope C5 90gsm Self Seal White Boxed (Pack of 500) WX3469
Envelope DL 90gsm Self Seal White (Pack of 1000) WX3480
C4 Envelopes Self Seal 90gsm White (Pack of 250) WX3499
C5 Envelope 75gsm Self Seal Manilla (Pack of 500) WX3516
5 Star C4 Pocket Envelope Self Seal 90gsm 324x229mm Manilla (Pack of 250) F90022
Q-Connect C6 Envelope Wallet Self Seal 80gsm White (Pack of 1000) KF02714
Q-Connect C5 Envelopes Gusset Peel and Seal 120gsm White (125 Pack) KF02889
Q-Connect Machine Envelope 162x238mm Gummed 90gsm White (Pack of 500) KF02897
Q-Connect Gusset Envelope 352x250x25mm Manilla B4 (Pack of 125) KF08898
Q-Connect DL Envelopes Pocket Self Seal 100gsm White (Pack of 500) 8027
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Total 137 products

FAQs:

  • What is a windowless plain envelope? A windowless plain envelope is a standard envelope without a transparent window. It provides a blank surface for addressing and sealing, suitable for mailing documents, letters or other flat items securely without revealing their contents through a window opening.
  • What envelope sizes fit through a letterbox? Standard envelope sizes that fit through letterboxes in Ireland typically include DL (110mm × 220mm) and C5 (162mm × 229mm). These sizes are commonly used for posting letters, invoices and documents and are designed to fit easily through standard letterbox slots.
  • How do you use self-sealed envelopes? To use self-sealed envelopes, simply insert your documents, letters or items into the envelope. Peel off the protective strip covering the adhesive on the flap, then press the flap firmly against the envelope to seal it securely without needing additional moisture or glue.
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