Pressure Seal
Checks, Forms, & Direct Mail
Pressure seal is the most efficient way to produce mail-ready checks and forms without the need for an envelope. Instead of licking and sticking envelopes, a pressure sealer machine folds and seals documents into self-mailers. This process requires less manual labor and lead time to reach the mail stream. Pressure seal is a great choice for mailing most types of documents since it’s customizable, secure, confidential, and tamper evident.
Examples of documents you can mail using pressure seal forms:
- Checks
- Utility bills
- Medical bills
- Transcripts
- Tax forms (W-2, 1099, ACA)
- Notices
- Invoices
- Statements
- PIN information
- Integrated Cards/Labels
- Direct Mail
How Does Pressure Seal Work?
First, pressure seal checks are imaged with a laser printer and compatible software. Next, the stub checks are loaded into a pressure sealer feed system (High volume systems run with a laser printer inline to a pressure sealer). During the folding process, the sealer machine aligns patterns of cohesive along the edges of the form. When the folded form passes through a series of sealing rollers that apply pressure, the cohesive is activated, creating a seal. The final product is a sealed mailer that is opened by tearing along the perforations.

Order Pressure Seal Stock & Equipment Online
Pressure Seal Forms
Browse pre-finished forms by size, weight, color, fold, and other features. Print your designs on our blank stock forms for low cost and efficient mail processing. Be sure to check out our poly-film window and 2-way return mail forms.
View All Forms
Pressure Seal Checks
Get the enhanced security of a laser check without the need for an envelope. Our check stock includes high security void pantographs, watermarks, microprinting, & warning bands. Also, we have the capability to custom imprint logos and MICR numbers on payroll checks, A/P checks, rebate checks & more.
View All Checks
Pressure Sealers
Skip the manual folding, stuffing, and closing of envelopes. We provide a wide selection of pressure seal equipment for low, mid, and high volume mail processing. Browse our catalog to find low-volume pressure sealers that fit on a desktop to high-volume production systems capable of speeds up to 80k per hour. Consult with a CheckSeal specialist to determine the right machine for your application.
View All Sealers
Direct Mail
Pressure seal forms are sometimes called “Snap Packs” in the direct mail context. Snap Packs offer great value when compared to mailing with traditional envelopes. Snap pack pressure seal consistently gets higher open rates due to customizable designs on the front/back plus several built-in features. Additionally, a single high volume pressure sealer is capable of processing as much as three folder/inserter machines. For high-volume mailing requirements, CheckSeal provides 2-wide continuous pressure seal rolls that yield up to 80K/HR.
Pressure Seal FAQs
What is Pressure Seal?
How is a pressure seal form sealed?
What makes a good Pressure Seal Form?
Are there any special handling issues for Pressure Seal forms before or after imaging?
Can any paper be used on Pressure Seal applications?
Why are there so many different pressure seal patterns?
What is the shelf life of the finished form?
How can I justify a Pressure Seal system?
- Faster output of finished mail
- Cost/Availability of traditional envelopes
- Inserter lines are slow and more expensive than sealers
- Conversion Costs
Which machine is the best fit for my application?
What is Simplex vs. Duplex Printing?
Work with a Pressure Seal Expert
CheckSeal has over 30 years experience providing pressure seal checks, forms, machines, & custom solutions for clients nationwide. Whether you’re looking for a complete pressure seal system or want to outsource your mailings, we have the right solution for you.