
INDUSTRIES WE SERVE
Practical adhesive solutions. Responsive support.
Technical expertise. People who care.
Envelope Manufacturing
Helping envelope manufacturers improve front gum, back gum, window, seam, and specialty adhesive performance while supporting clean application and dependable high-speed production.

Envelope manufacturing requires multiple adhesive technologies to perform reliably within one finished product. Front gum, back gum, remoistenable gum, latex gum, window patching, and seam adhesives each serve a different purpose and face different production demands. We understand the language of the envelope industry and the importance of machinability, lay-flat performance, clean application, and dependable closure. Whether you need an established product, a replacement technology, or help with a difficult application, we are prepared to listen and respond.
Having trouble with a gum, seam, or window application? Share the challenge with people who understand envelope production.
Why Envelope Manufacturers Contact HAR
Front gum, back gum, remoistenable gum, or self-seal closures are not performing consistently.
Seam adhesive is stringing, clumping, building up, or slowing production.
Window adhesive is affecting appearance, lay-flat performance, or machine reliability.
Changing paper, film, coatings, speeds, or drying conditions require a different adhesive approach.
A familiar product has been discontinued, repriced, or become difficult to obtain.
The manufacturer wants one responsive resource that understands both envelope adhesives and their application.

Joe and the HAR Team






