Partners Brand EN1064 Expandable Self-Seal Envelopes 5x11 Kraft Pack 100

What the Envelopes Are

Partners Brand EN1064 expandable self-seal envelopes measure 5 by 11 inches with a two-inch gusset. The Kraft construction suits everyday shipping and mailing tasks in offices, warehouses or home workspaces. Each pack contains one hundred envelopes. The self-seal closure removes the need for tape or moisture.

Behaviour Under Repeated Use

The gummed flap activates with pressure and holds securely through normal transit handling. Expansion to the full two-inch depth does not stress the side seams. Kraft fibre resists tearing when stuffed with catalogues, samples or folded documents. Adhesive remains effective across the whole pack when stored flat.

Build Quality and Daily Handling

Heavyweight Kraft stock gives a rigid feel that feeds cleanly through postage meters and conveyor belts. The square flap aligns automatically on high-volume sealers. Packaged in a dispensing carton that keeps envelopes flat and dust-free until needed. No reinforcement tape or extra sealing steps are required.