KingSeal: The industry standard in pressure seal mailers.

KingSeal — the industry leader in Pressure SealKingSeal is our pressure seal mailer—a one-part form that folds and seals to create a mail piece without requiring envelopes—the form itself also serves as the envelope. Unique to King Printing Solutions, our pressure seal is the industry leader, carrying the mark of quality and assurance. KingSeal Pressure Seal offers three key benefits:  functionality, ease of use and security.