6x9 28 lb Kraft Self-Seal Envelopes 500/Case
$98.80
/ case of 500$0.20 per mailer
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Ships from the nearest of 5 US warehouses · freight calculated at checkout
30-day returns on stock items · Return policy
Inside dimensions
6" × 9"
Board / material
28 lb. Paper Stock
Color
Kraft
Freight class
Class 78
Specifications
| Inside dimensions | 6" × 9" (L × W) |
|---|---|
| Board / material | 28 lb. Paper Stock |
| Color | Kraft |
| Sold as | Case of 500 |
| Order in multiples of | 1 |
| Case weight | 11.24 lb |
| Outer carton (shipping) | 14.0 × 9.5 × 6.75 in |
| LTL freight class | Class 78 |
| GTIN | 841436091756 |
| SKU | EN1068 |
About this item
SKU EN1068 — 6" × 9", 28 lb. Paper Stock, Kraft. Sold as a case of 500, shipped from US warehouses.
6x9 kraft self-seal envelopes, 28 lb paper, 500 per case. Packrift SKU EN1068 is an unpadded kraft paper envelope with a peel-and-seal closure that requires no moisture. Use it for documents, catalogs, photos, certificates, apparel, and lightweight flat items that fit the listed 6x9-inch size.
Verified construction: kraft paper, 28 lb basis weight, self-seal closure, 6x9-inch format, and 500 envelopes per case. The plain paper construction has no cushioning layer.
Common questions
Do these envelopes require water or moisture to seal?
No. Simply peel back the tear strip to expose the self-sealing adhesive, then press the flap closed. This eliminates water applicators, sponges, and the mess associated with traditional gummed envelopes.
How long does the adhesive stay fresh in storage?
The integrated tear strip keeps the adhesive protected from dust, moisture, and air exposure, maintaining seal quality for extended shelf life. Store in a cool, dry environment for optimal performance.
Will these envelopes meet shipping compliance and carrier requirements?
Yes. The 28 lb. kraft paper stock meets standard mailroom and carrier specifications for flat mail and small parcel sealing. Adhesive creates a secure, tamper-evident seal compliant with USPS, UPS, and FedEx standards.
How many envelopes can one employee seal per hour?
With no water or applicator setup required, employees can seal 300-400+ envelopes per hour, compared to 150-200 with traditional gummed envelopes. This translates to faster mailroom throughput and reduced labor costs per piece.
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Questions on specs or freight?
Send the SKU, quantity, and delivery ZIP and we will confirm specs, availability, and freight before you order.