Bsc Preferred PL521 Packing List Envelopes 1000 Per Case

Product Description

The BSC PREFERRED PL521 is a transparent, pressure-sensitive packing list envelope designed to protect and display shipping documents on the outside of packages and cartons. Constructed at 2 mil thickness, each envelope provides a tamper-evident barrier that keeps documents clean, dry, and legible without opening the package. The back-loading design allows documents to be inserted and secured quickly during packing operations. These envelopes are sold in a case quantity of 1000 units, making them a practical choice for warehouses, distribution centers, and shipping departments that process high volumes of outbound freight.

The PL521 is suited for industrial and commercial shipping applications where packing lists, invoices, or delivery receipts must travel with the shipment. The clear film construction allows the document to be read without removing the envelope from the carton. Back-loading entry keeps the opening positioned away from the adhesive face, reducing the chance of accidental seal failure during handling. These envelopes are commonly applied to corrugated cartons, totes, and palletized shipments across distribution, manufacturing, and fulfillment environments.

Key Features

• 2 mil thick transparent film keeps documents visible and protected
• Pressure-sensitive adhesive backing bonds to most carton and box surfaces
• Tamper-evident construction helps ensure documents are not removed or altered in transit
• Back-loading entry for fast, reliable document insertion
• Case pack of 1000 envelopes supports high-volume shipping operations

Compatibility

The PL521 is equivalent to part number S-2593. Designed as an OEM-style replacement packing list envelope compatible with standard carton and corrugated box surfaces in general shipping and distribution applications.

Installation Notes

Clean and dry the carton surface before applying the adhesive face to ensure a secure bond. Peel the liner, insert the document, then press firmly across the full face of the envelope to activate the pressure-sensitive adhesive. Avoid application to wet, oily, or heavily textured surfaces where adhesion may be reduced. No tools or equipment are required for application.