6x9" White Self-Seal Envelopes 28 lb. Paper - Case of 500
$82.80
/ case of 500$0.17 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
White
Freight class
Class 78
Specifications
| Inside dimensions | 6" × 9" (L × W) |
|---|---|
| Board / material | 28 lb. Paper Stock |
| Color | White |
| Sold as | Case of 500 |
| Order in multiples of | 1 |
| Case weight | 11.04 lb |
| Outer carton (shipping) | 14.0 × 9.5 × 7.0 in |
| LTL freight class | Class 78 |
| GTIN | 841436091787 |
| SKU | EN1069 |
About this item
SKU EN1069 — 6" × 9", 28 lb. Paper Stock, White. Sold as a case of 500, shipped from US warehouses.
The 6x9" White Self-Seal Envelopes 28 lb. Paper is a shipping mailer for documents, catalogs, apparel, small parts, photos, and lightweight e-commerce orders. Listed specs include size 6" x 9"; white material; 28 lb; case of 500. Use it as a mailing envelope, poly mailer, padded mailer, or flat document shipper when the item fits the listed size.
Common questions
Do these envelopes require water or moisture to seal?
No. These self-seal envelopes feature a pre-activated adhesive strip that requires only a simple peel-and-seal action. Simply remove the tear strip and press to seal, no water, sponge, or equipment needed.
What is the tear strip and why does it matter?
The tear strip is a protective backing that keeps the adhesive clean and dust-free before use. This extends shelf life, maintains consistent seal quality, and prevents premature adhesive activation during storage.
Will these envelopes meet shipping carrier requirements?
Yes. The 9" x 6" dimensions and 28 lb. paper stock meet USPS and major carrier specifications for flat mail and standard business correspondence, ensuring compliance with all standard shipping protocols.
How much can these envelopes hold and how durable are they?
The 28 lb. paper stock provides excellent puncture and tear resistance for typical business documents, statements, and lightweight promotional materials. For heavier items, consider reinforced kraft options, but these are ideal for standard office mailings up to 5-7 pages.
Order support
Questions on specs or freight?
Send the SKU, quantity, and delivery ZIP and we will confirm specs, availability, and freight before you order.