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Shop Self Seal Envelopes

(1118 items found)
Reduce or eliminate unnecessary supplies with self-seal envelopes. Skip the need for sponges, moistener pens, and refillable bottles. Self-stick envelopes use wax or glue to bond both sides, and secure contents. Save time without losing durability or security with different styles of self-stick envelopes, and order #10 self-seal envelopes at 500 per box for long-lasting supplies. Read more
66% off
New Customers
Quill Brand EasyClose Security Tinted #10 Business Envelopes, 4 1/8 x 9 1/2, White, 500/Box (30164Quill Brand EasyClose Security Tinted #10 Business Envelopes, 4 1/8 x 9 1/2, White, 500/Box (30164
Quill Brand® 500/Box EasyClose Security Tinted #10 Business Envelope, 4-1/8" x 9-1/2", White (3016453)
Item #: 032-60353
US #10 business envelopes are suitable for many mailing projects
Made from white 24 lb. paper for durability
These envelopes measure 4 1/8"H x 9 1/2"L in size, providing enough space for your mail
$52.09 Save 66%
$17.49
Per box
Self-Sealing Security-Tint #10 Envelopes, 4-1/8 x 9-1/2, White, 500/Box (511289/99296)Self-Sealing Security-Tint #10 Envelopes, 4-1/8 x 9-1/2, White, 500/Box (511289/99296)
Self-Sealing Security-Tint #10 Envelopes, 4-1/8" x 9-1/2", White, 500/Box (511289/99296)
Item #: 901-511289
US #10 business envelopes are suitable for all your mailing needs
Made from white 24 lb. paper for durability
These envelopes measure 4 1/8"H x 9 1/2"L in size, providing enough space for your mail
$38.79
1-3 box
Save 7%
$35.99
4+ box
Staples QuickStrip EasyClose Self Seal #10 Business Envelopes, 4 1/8 x 9 1/2, White, 100/Box (ST50
Staples QuickStrip EasyClose Self Seal #10 Business Envelopes, 4 1/8" x 9 1/2", White, 100/Box (ST50307-CC)
Item #: 901-394053
Business envelope for a professional look
White, 24lb. woven paper for durability
#10 (4-1/8" x 9-1/2")
$9.19
Per box
54% off
New Customers
Quill Brand Easy Close Self Seal Security Tinted #10 Business Envelope, 4-1/8 x 9-1/2, White, 100/Quill Brand Easy Close Self Seal Security Tinted #10 Business Envelope, 4-1/8 x 9-1/2, White, 100/
Quill Brand® 100/Box Easy Close Self Seal Security Tinted #10 Business Envelope, 4-1/8" x 9-1/2", White (69703 / 70711)
Item #: 032-75762
US # 10 business envelopes are suitable for many mailing projects
Made from white 24 lb. paper for durability
Size: 4-1/8" x 9-1/2"
$11.19 Save 54%
$5.09
Per box
Quill Brand Easy Close Self Seal #10 Business Envelope, 4-1/8 x 9-1/2, White, 500/Box (69686 / 707Quill Brand Easy Close Self Seal #10 Business Envelope, 4-1/8 x 9-1/2, White, 500/Box (69686 / 707
Quill Brand® 500/Box Easy Close Self Seal #10 Business Envelope, 4-1/8" x 9-1/2", White (69686 / 70701)
Item #: 901-75746Q
US # 10 business envelopes are suitable for many mailing projects
Made from white 24 lb. paper for durability
Size: 4-1/8" x 9-1/2"
$43.89
Per box
Quill Brand Self Seal Security Tinted #10 Left Window Envelope, 4 1/8 x 9 1/2, White Wove, 500/BoxQuill Brand Self Seal Security Tinted #10 Left Window Envelope, 4 1/8 x 9 1/2, White Wove, 500/Box
Quill Brand® 500/Box Self Seal Security Tinted #10 Left Window Envelope, 4-1/8" x 9-1/2", White Wove (3016452)
Item #: 901-60350Q
Envelopes are suitable for all your mailing needs
Made from 24 lbs. white wove paper for durability
These envelopes measure 4 1/8" x 9 1/2" in size, providing enough space for your mail
$62.29
Per box
Staples Self Seal Self Seal Security Tinted #9 Double Window Envelopes, 3 7/8 x 8 7/8, White, 500/Staples Self Seal Self Seal Security Tinted #9 Double Window Envelopes, 3 7/8 x 8 7/8, White, 500/
Staples Self Seal Self Seal Security Tinted #9 Double Window Envelopes, 3 7/8" x 8 7/8", White, 500/Box (ST28731-CC)
Item #: 901-1775861
Pressure Sensitive Adhesive
#9 business envelopes are suitable for all your mailing needs
These envelopes measure 3 7/8"H x 8 7/8"L in size, providing enough space for your mail
$63.29
Per box
Staples® Simply Self Seal Security Tinted #6 Business Envelopes, 3 5/8 x 6 1/2, White, 50/Box (862Staples® Simply Self Seal Security Tinted #6 Business Envelopes, 3 5/8 x 6 1/2, White, 50/Box (862
Staples® Simply Self Seal Security Tinted #6 Business Envelopes, 3 5/8" x 6 1/2", White, 50/Box (862999)
Item #: 901-862999STP
QuickStrip business envelopes are suitable for many mailing projects
Made from white 20 lb. paper for durability
These envelopes measure 3 5/8"H x 6 1/2"W in size, providing enough space for your mail
$5.59
Per box
Staples QuickStrip EasyClose Self Seal #10 Business Envelopes, 4 1/8 x 9 1/2, Assorted Colors, 50/Staples QuickStrip EasyClose Self Seal #10 Business Envelopes, 4 1/8 x 9 1/2, Assorted Colors, 50/
Staples QuickStrip EasyClose Self Seal #10 Business Envelopes, 4 1/8" x 9 1/2", Assorted Colors, 50/Pack (ST23431-CC)
Item #: 901-122725
US #10 business envelopes are suitable for many mailing projects
The assortment of colors allows you to color-code or simply add some color to mailings
These envelopes measure 4 1/8"H x 9 1/2"L in size, providing enough space for your mail
$13.29
Per pack
Staples Self Seal Self Seal Security Tinted #10 Double Window Envelopes, 4 1/8 x 9 1/2, White, 500Staples Self Seal Self Seal Security Tinted #10 Double Window Envelopes, 4 1/8 x 9 1/2, White, 500
Staples Self Seal Self Seal Security Tinted #10 Double Window Envelopes, 4 1/8" x 9 1/2", White, 500/Box (ST28730-CC)
Item #: 901-1775862
Pressure Sensitive Adhesive
#10 business envelopes are suitable for all your mailing needs
White color is ideal for business or personal correspondence
$56.09
Per box
Staples® Kraft Self-Sealing Catalog Envelopes; 9 x 12, Brown, 250/Box (486931/14245)Staples® Kraft Self-Sealing Catalog Envelopes; 9 x 12, Brown, 250/Box (486931/14245)
Staples® Kraft Self-Sealing Catalog Envelopes; 9" x 12", Brown, 250/Box (486931/14245)
Item #: 901-486931
Catalog envelopes are perfect for catalogs, brochures, and documents
Made from brown kraft paper that conceals contents from prying eyes
Dimensions: 9"L x 12"H
$70.39
Per box
Staples QuickStrip EasyClose Kraft Self Seal #1 Catalog Envelopes, 6 x 9, Kraft, 100/Box (ST20140/Staples QuickStrip EasyClose Kraft Self Seal #1 Catalog Envelopes, 6 x 9, Kraft, 100/Box (ST20140/
Staples QuickStrip EasyClose Kraft Self Seal #1 Catalog Envelopes, 6" x 9", Kraft, 100/Box (ST20140/20140)
Item #: 901-892100
Brown Kraft paper provides sturdy construction
6" x 9"
QuickStrip closure makes sealing envelopes easy
$23.49
Per box
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Quill Brand Easy Close Self Seal #10 Window Envelope, 4-1/8 x 9-1/2, White, 500/Box (69684 / 70697Quill Brand Easy Close Self Seal #10 Window Envelope, 4-1/8 x 9-1/2, White, 500/Box (69684 / 70697
Quill Brand® 500/Box Easy Close Self Seal #10 Window Envelope, 4-1/8" x 9-1/2", White (69684 / 70697)
Item #: 901-75761Q
US # 10 business envelopes are suitable for many mailing projects
Made from white 24 lb. paper for durability
Size: 4-1/8" x 9-1/2"
$49.99
Per box
Quill Brand® Easy Close Catalog Envelope, 9 x 12,Brown Kraft, 250/Box (PS91228B)Quill Brand® Easy Close Catalog Envelope, 9 x 12,Brown Kraft, 250/Box (PS91228B)
Quill Brand® 250/Box Easy Close Catalog Envelope, 9" x 12", Brown Kraft (PS91228B)
Item #: 901-PS91228B
Catalog envelopes are a reliable choice for multiple kinds of personal and business mailing purposes
28-lb. plain brown Kraft paper
Size: 9" x 12"
$71.49
Per box
Quill Brand® Easy Close Catalog Envelope, 9 x 12, White, 250/Box (PS91228W)Quill Brand® Easy Close Catalog Envelope, 9 x 12, White, 250/Box (PS91228W)
Quill Brand® 250/Box Easy Close Catalog Envelope, 9" x 12", White (PS91228W)
Item #: 901-PS91228W
Catalog envelopes are a reliable choice for multiple kinds of personal and business mailing purposes
28-lb plain white wove stock
Size: 9" x 12"
$56.99
1-3 box
Save 7%
$52.99
4+ box
Staples® 9 x 12 White Wove QuickStrip® Catalog Envelopes, 100/BoxStaples® 9 x 12 White Wove QuickStrip® Catalog Envelopes, 100/Box
Staples® 9" x 12" White Wove QuickStrip® Catalog Envelopes, 100/Box
Item #: 901-379479STP
Catalog envelopes are a reliable choice for multiple kinds of personal and business mailing purposes
White paper shows labeling and writing clear and concise
Dimensions: 9"L x 12"H
$28.59
Per box
Staples® QuickStrip EasyClose Business Envelopes, #9, 3 7/8 x 8 7/8, White, 500/Box (570235/19041)Staples® QuickStrip EasyClose Business Envelopes, #9, 3 7/8 x 8 7/8, White, 500/Box (570235/19041)
Staples® QuickStrip EasyClose Business Envelopes, #9, 3 7/8" x 8 7/8", White, 500/Box (570235/19041)
Item #: 901-570235STP
US #9 business envelopes are suitable for many mailing projects
Made from white 24 lb. paper for durability
These envelopes measure 3 7/8"H x 8 7/8"L in size, providing enough space for your mail
$36.69
Per box
Custom #10 Self Seal Envelopes, 4 1/8 x 9 1/2, 24# White Wove, 1 Standard Ink, 250 / Pack
Custom #10 Self Seal Envelopes, 4 1/8" x 9 1/2", 24# White Wove, 1 Standard Ink, 250 / Pack
Item #: 901-QCENV00063
4-1/8" x 9-1/2" (#10 Envelopes), Self Seal
24# White Wove Stock, Flat Ink
250 Envelopes Per Pack
$61.99
1 pack
Save 53%
$28.99
20+ pack
9 x 13 Resubmission Right Window Self Seal Envelopes with Security Tint, 24# White Wove, No Imprin
Quill Brand® 250/Pack Resubmission Right Window Self Seal Envelope with Security Tint, 9" x 13", 24# White Wove, No Imprint
Item #: 901-QCENV00933
9" x 13" Envelopes, Self Seal with Security Tint
24# White Wove Stock with Security Tint, Blank
Window size is 4-1/2" x 1-1/8"; when held vertically the window is 4" from the left and 1-15/16" from top
$160.29
1 pack
Save 12%
$139.99
2+ pack
Staples Self Seal #1 Catalog Envelopes, 6L x 9H, White, 100/Box (SPL609121)Staples Self Seal #1 Catalog Envelopes, 6L x 9H, White, 100/Box (SPL609121)
Staples Self Seal #1 Catalog Envelopes, 6"L x 9"H, White, 100/Box (SPL609121)
Item #: 901-609121STP
Catalog envelopes are perfect for invoices
White paper shows labeling and writing clear and concise
Dimensions: 6"L x 9"H, size #1
$34.69
1-3 box
Save 7%
$31.99
4+ box
Staples Self Seal Security Tinted Catalog Envelopes, 9 x 12, White, 100/Box (21574)Staples Self Seal Security Tinted Catalog Envelopes, 9 x 12, White, 100/Box (21574)
Staples Self Seal Security Tinted Catalog Envelopes, 9" x 12", White, 100/Box (21574)
Item #: 901-329845
Catalog envelopes are a convenient and reliable choice for personal and business mailing purposes
Durable, lightweight, and tear-resistant 10gsm woven paper.
Dimensions: 9"L x 12"H; size #10
$87.79
Per box
Staples Self Seal Kraft Catalog Envelopes, 7.5L x 10.5H, Brown, 100/Box (534792/17105)Staples Self Seal Kraft Catalog Envelopes, 7.5L x 10.5H, Brown, 100/Box (534792/17105)
Staples Self Seal Kraft Catalog Envelopes, 7.5"L x 10.5"H, Brown, 100/Box (534792/17105)
Item #: 901-534792
Catalog envelopes are perfect for catalogs, documents, and invoices
Made from brown kraft paper that conceals contents from prying eyes
Dimensions: 7.5"L x 10.5"H, size #6
$34.69
1-3 box
Save 7%
$31.99
4+ box
Staples EasyClose Left Window #10 Envelopes, 4 1/8 x 9 1/2, White, 500/Box (381936/17041)Staples EasyClose Left Window #10 Envelopes, 4 1/8 x 9 1/2, White, 500/Box (381936/17041)
Staples EasyClose Left Window #10 Envelopes, 4 1/8" x 9 1/2", White, 500/Box (381936/17041)
Item #: 901-381936
Envelopes are great for mailing letters and documents
Made from 24 lbs. white wove paper for durability
These envelopes measure 4 1/8" x 9 1/2" in size, providing enough space for your mail
$46.99
Per box
58% off
Out of stock
Quill Brand Easy Close Self Seal #10 Business Envelope, 4-1/8 x 9-1/2, White, 100/Box (75030Q)
Quill Brand® 100/Box Easy Close Self Seal #10 Business Envelope, 4-1/8" x 9-1/2", White (75030Q)
Item #: 901-75030
US # 10 business envelopes are suitable for many mailing projects
Made from white 24 lb. paper for durability
Size: 4-1/8" x 9-1/2"
$23.79 Save 58%
$9.99
Per box
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Self-seal envelopes work

These envelopes use an adhesive gum or wax on both flaps that seal the sides together when firmly gripped. They save a step because users don’t have to remove a protective strip from the glue or apply water to activate a sticky adhesive. There are three main types of envelope flaps: wallet, square, and pointed. Most businesses use the wallet type for billing and other reports, and use the square for larger mailings, such as catalogs and oversized brochures. Pointed styles are formal and more common for invitations and similar special mailers. Envelopes come in a variety of sizes that are designated by numbers. For example, #10 self-seal envelopes (500 per box) are ideal for mailing letter-size documentation, while #9 envelopes are suitable as return envelopes as they fit inside #10s. 

Self-stick envelopes with address windows

Some types of self-stick envelopes have one or two windows to display printed mailing and return addresses, which also helps customers identify the sender. The display windows make it easier to use computer printouts of invoices and other digital correspondence, and they reduce the need for mailing labels. Increase productivity by reducing the number of mailing steps. Window locations include:

  • Double-left
  • Single-left
  • Single-right
  • Center

You can also increase office production by using self-seal padded mailers in place of wrapping products and placing them in shipping envelopes.

Different self-stick envelopes for various tasks

Self-seal envelopes are available in multiple sizes to mail different documents, including oversized items such as catalogs and legal papers. Use mailers that are larger than the documents to reduce bending and tearing. Send delicate items in self-seal poly bubble mailers that use shipping bubble wrap lining on the inside of the envelope. These help keep contents safer than traditional envelopes.

For personal and confidential correspondence, consider envelopes with a security tint. These have a blue pattern that reduces the content’s visibility through the envelope. Offices can also increase document security by using a windowless style. For the most professional appearance, keep blank printer-compatible labels with office mailing supplies. You can write on or use printed labels with these options.

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