Partners Brand EN1022 Gummed Envelopes 9x12 Kraft PK1000

Product identity

Partners Brand EN1022 Gummed Envelopes are large-format kraft mailers supplied in a bulk pack of 1000. They use a traditional gummed seal that activates with moisture for a secure closure. The 9 by 12 inch dimensions accommodate unfolded A4 documents, catalogues or multiple sheets without folding. This product is intended for offices, fulfilment centres and mailrooms that send high volumes of flat mail.

Who these suit and who they don’t

These envelopes suit operations that prefer a moisture-activated seal and need a high-count supply of 9x12 kraft mailers. They are not suited to buyers who want a self-adhesive peel-and-seal closure for faster processing. They are also not suited to anyone needing a smaller quantity than the 1000-count pack or a different envelope size for lighter contents.

Deciding specification

The critical specification is the gummed sealing method, which requires a moistener or sponge to activate the adhesive on each flap. If your workflow relies on instant peel-and-seal convenience, this pack will slow down your packing line. If you can accommodate the moisture step, the 1000-count box delivers a low per-unit cost for bulk mailing.