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1. 

   #10 Double Window Envelopes (4 1/8 x 9 1/2) - White with Security Tint 24lb

   from $15.00 / 50

   $0.30 ea. (as low as $0.07 ea.)

   As low as $0.07

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2. 

   #10 Regular Envelopes (4 1/8 x 9 1/2) - White with Security Tint 24lb

   from $8.50 / 25

   $0.34 ea. (as low as $0.05 ea.)

   As low as $0.05

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3. 

   #10 Window Envelopes (4 1/8 x 9 1/2) with Simple Seal - White with Security Tint 24lb

   from $8.00 / 25

   $0.32 ea. (as low as $0.09 ea.)

   As low as $0.09

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4. 

   9 x 12 Open End Window Envelopes - White with Security Tint 28lb

   from $35.00 / 50

   $0.70 ea. (as low as $0.32 ea.)

   As low as $0.32

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What is a security envelope?

A security envelope is a specially designed envelope that helps protect private or sensitive information during mailing. It usually features a printed interior pattern, often called a security tint, that makes it difficult to read the contents through the paper. Security envelopes are commonly used for mailing checks, invoices, bank statements, tax documents, medical records, legal notices, and other confidential paperwork.

Security envelopes may also include features such as tamper-evident seals, self-seal closures, durable paper, and window or non-window designs. Businesses and individuals use them to reduce the risk of information exposure, identity theft, and document tampering while sending important mail.

In simple terms, a security envelope is an envelope made to keep the contents private until they reach the intended recipient.

What is security tint and how does it work?

Security tint is the printed pattern on the inside of a security envelope that helps hide the documents inside. It is usually a dense blue, gray, or black pattern designed to block people from seeing text, numbers, checks, or account details through the envelope paper.

Security tint works by adding visual noise between the outside of the envelope and the contents inside. When someone tries to hold the envelope up to light, the interior pattern makes it difficult to distinguish the printed information on the document. This helps protect sensitive mail such as checks, invoices, bank statements, tax forms, medical notices, and legal documents.

For the best privacy, security tint is often combined with opaque paper, proper folding, and strong adhesive seals. In short, security tint makes an envelope more confidential by preventing the contents from being easily read before the envelope is opened.

What sizes are available?

Security envelopes are available in a wide range of sizes to fit different mailing needs, from standard business correspondence to invoices, checks, statements, and larger documents. Available sizes include #10 - 4 1/8 x 9 1/2, #9 - 3 7/8 x 8 7/8, #6 3/4 - 3 5/8 x 6 1/2, 9 x 12, 6 x 9, 3 7/8 x 8 5/8, 5 3/4 x 8, A9 - 5 3/4 x 8 3/4, 4 1/2 x 9 1/2, 3 5/8 x 8 3/4, #6 1/4 - 3 1/2 x 6, 3 3/4 x 6 3/4, 4 1/8 x 9 1/8, 10 x 13, 2 3/8 x 3 1/2, 5 3/4 x 9 1/4, 5 3/4 x 8 7/8, 5 5/8 x 9, and 3 7/8 x 5 1/8.

The most popular security envelope size is #10, which is commonly used for business mail, invoices, statements, checks, and other confidential documents. Many security envelopes are also available with different window options and sealing options, including convenient self-seal closures and traditional gum seal envelopes.

Are security envelopes suitable for bulk mailing?

Yes, security envelopes are suitable for bulk mailing and are commonly used by businesses, banks, healthcare providers, insurance companies, schools, nonprofits, and government offices to send large volumes of confidential mail.

Security envelopes are ideal for bulk mailing because they help protect sensitive information such as invoices, statements, checks, tax documents, notices, and account details. They are available in popular mailing sizes like #10, as well as multiple window options for printed addresses and sealing options such as self-seal and gum seal. For high-volume mailings, self-seal security envelopes can help save time, while window security envelopes can reduce the need for address labels.

For the best results, choose a security envelope size, window style, and sealing method that matches your mailing equipment, document layout, and postage requirements.