Pressure Sensitive Hot Melt Adhesive: Guide & Uses
Pressure sensitive hot melt adhesive (PSA) is a specialized hot melt that, after cooling, stays permanently tacky and bonds on contact with light pressure — no prolonged clamping required. It powers labels, tapes, films and many assembly jobs where instant tack matters.
PSA vs Standard Hot Melt
| Standard hot melt | Pressure sensitive (PSA) | |
|---|---|---|
| After cooling | Solid, rigid bond | Remains tacky |
| Bonding | Needs positioning before set | Bonds on contact pressure |
| Typical use | Assembly, packaging | Labels, tapes, films |
Common PSA Applications
- Labels & stickers — permanent or removable tack
- Tapes & films — including pre-coating film and lamination
- Gift box & paper bag assembly — clean, fast tack
- Specialty assembly — where clamping is impractical
Form & Supply
Jiajian supplies pressure sensitive hot melt in block form for melt-tank and coating use. View pressure sensitive blocks →
FAQ
Is PSA the same as regular hot glue?
No. Regular hot melt sets rigid after cooling; PSA stays tacky and bonds with light pressure. They are formulated differently for different jobs.
Can PSA be used for carton sealing?
Carton sealing usually uses standard EVA hot melt for a rigid seal. PSA is preferred where instant tack or removability is needed, such as labels and films.
What documents are available?
Test and compliance documents are confirmed per selected product, model and destination market. Tell us your market to confirm applicable certificates.