- Applicable product: Panel air filter, pleated filter elements
- Compatible material: Industrial air filter paper
- Working temperature: Approximately 170℃
- Application method: Continuous automatic spraying
In actual air filter pleating production, UNISN L217-4 shows stable and consistent glue output during long-term continuous spraying. The adhesive maintains excellent fluidity at 170℃ without wire drawing, blocking, intermittent glue breakage or overflow, ensuring smooth high-speed automated production.
The bonded filter products have passed strict high-temperature and low-temperature cycle tests. The adhesive layer remains firm and tight without peeling, cracking or loose pleats under extreme temperature changes, ensuring stable filtration performance and long service life of the filter element.
In addition, L217-4 features mild odor and low VOC performance during melting and application, providing a safer and more environmentally friendly workshop production environment.
![]()
![]()
UNISN L217-4 is a highly reliable hot melt adhesive solution for air filter pleating processes. It offers stable spraying performance, excellent weather resistance and environmentally friendly characteristics, perfectly matching the mass production requirements of industrial and automotive air filters. It effectively improves product yield, reduces production failures, and ensures consistent quality of finished filter elements.
