Use for mailrooms, shipping departments, and office professionals who process high volumes of outgoing mail daily. These 9 1/2 x 12 1/2" Kraft Redi-Seal envelopes eliminate moisture-sealing steps, reducing labor time and increasing throughput while maintaining professional appearance and durability with 28 lb. paper stock.
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Specs at a Glance
| Material | 28 lb. Kraft Paper Stock |
| Dimensions | 9 1/2" x 12 1/2" |
| Sealing Type | Redi-Seal (Press-to-Seal, No Moisture Required) |
| Quantity per Case | 500 Envelopes |
| Recyclable | Yes |
Common Use Cases
- High-volume mailroom operations and batch mailing Invoice and statement distribution Shipping documentation and packing slips Promotional mailers and direct mail campaigns Monthly billing and account correspondence
What You'll Receive
- 500 Kraft Redi-Seal Envelopes (9 1/2 x 12 1/2") Ready-to-use, no additional supplies needed
Shipping & Packaging
Frequently Bought Together
Bundle & Save 5%Frequently Asked Questions
Redi-Seal envelopes feature a pressure-sensitive adhesive strip pre-applied to the flap. Simply fold down the flap and press firmly to seal, no water, sponges, or moisture required. Users typically save 3-5 seconds per envelope compared to traditional gummed sealing, translating to 25-40 minutes saved per 500-envelope case in high-volume operations.
Yes. These 9 1/2 x 12 1/2" Kraft envelopes meet USPS size requirements for standard mail and flat-rate shipping. The durable 28 lb. paper stock provides adequate protection for documents and light materials during transit, and the secure Redi-Seal closure prevents accidental opening.
28 lb. Kraft paper offers durability, puncture resistance, and tear strength compared to lighter 24 lb. alternatives. This heavier stock protects contents during sorting, handling, and transport while projecting a more professional appearance, critical for business correspondence, invoices, and formal documents.
Yes. Packrift offers competitive volume pricing on cases of 500 and larger quantities. Contact our sales team to discuss bulk orders, custom printing options, and volume-based discounts for ongoing mailroom supply contracts.
Technical Specifications
| Material | 28 lb. Kraft Paper Stock |
| Dimensions | 9 1/2" x 12 1/2" |
| Sealing Type | Redi-Seal (Press-to-Seal, No Moisture Required) |
| Quantity per Case | 500 Envelopes |
| Recyclable | Yes |
| Color | Kraft |
| Strength / Material | 28 lb. Paper Stock |
| Dimensions (Internal) | 9 1/2"" × 12 1/2"" (L × W × H) |
Product Downloads
Shipping Information
Outer Carton Dimensions
16.0" × 12.5" × 11.25" (L × W × D)
Unit of Measure
CASE
Qty Per Shipping Unit
500 PER CASE
LTL Freight Class
Class 78
Carrier Eligibility
UPS Ground & Freight Eligible
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