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The BSC PREFERRED EN1067 is a self-seal, side-loading envelope designed for fast, moisture-free closure in high-volume mailing and shipping environments. A peel-off tear strip exposes the adhesive only at the moment of sealing, protecting it from dust and extending shelf life on the shelf or in storage. Constructed from 40 lb. paper stock, these envelopes are durable enough for standard business correspondence and document mailers. Expandable sides allow the envelope to accommodate bulkier contents without compromising the seal. Sold in cases of 100 units, the EN1067 is suited for mailrooms, warehouses, and office supply operations that demand consistent, reliable performance.
These envelopes are appropriate for general-purpose commercial mailing, document distribution, and light-duty shipping tasks. The side-loading configuration makes inserting flat or multi-page documents straightforward without bending or forcing contents. The self-seal mechanism eliminates the need for water, sponges, or additional sealing tools, making them practical for environments where throughput and cleanliness matter. Compatible with standard mailroom workflows in both small office and larger distribution settings.
The EN1067 is cited as equivalent to part number S-5874. Designed as a standard replacement or substitute in general commercial and mailroom envelope applications.
No tools or special equipment are required for use. Store cases in a cool, dry location away from direct sunlight to preserve adhesive integrity. When sealing, press firmly along the full length of the flap to ensure a complete bond. Avoid storing opened cases in high-humidity environments, as moisture exposure can degrade the adhesive prior to use.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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