Air filters are widely used across industrial, automotive, medical, and household applications. Their core function is to remove contaminants from the air, ensuring the safety of equipment and personnel. To maintain filtration efficiency and achieve a seamless seal between intake and exhaust pathways, air filter adhesive plays a critical role as a key bonding material in filter assembly.
Bonding and Structural Integrity
Air filter adhesive securely bonds various components of the filter, such as filter media to end caps and seams between pleated papers. It ensures that the structure remains intact under airflow impact or vibration, preserving the integrity and stability of the filter assembly.
Sealing
The adhesive fills micro-gaps between parts, preventing unfiltered air from bypassing the filter and entering the system. Effective sealing enhances filtration efficiency and minimizes damage caused by dust and particulates to downstream components.
Moisture Resistance
Air filter adhesive helps prevent moisture ingress into the filter, protecting the filter media from performance degradation due to humidity. This function is particularly vital in humid environments or challenging operating conditions, ensuring the consistent performance of the filter.
Vibration Damping
Filters are often exposed to vibrations during equipment operation. Air filter adhesive provides a cushioning effect, reducing the impact of vibrations on filter components and lowering the risk of fatigue damage or cracking over time.
Hot melt adhesive has become a preferred choice in air filter manufacturing due to its 100% solid content, solvent-free composition, low odor, and non-toxic, environmentally friendly properties. Its fast curing and excellent bonding strength allow it not only to join various filter components but also to function as a pleat-separation medium, helping maintain uniform pleating and consistent filtration performance.
EVA-Based Hot Melt Adhesive
Ideal for pleating and frame bonding. It offers excellent flowability and strong adhesion.
Polyolefin (PE)-Based Hot Melt Adhesive
Suitable for high-temperature environments. It delivers outstanding aging resistance and performs well under demanding conditions.
Polyamide (PA)-Based Hot Melt Adhesive
Known for superior heat resistance, it is ideal for high-performance industrial filter applications.
Air filter adhesive is widely applied in pleat stabilization, end cap bonding, frame sealing, edge sealing, and center filling. These applications ensure the filter structure is robust, air-tight, and capable of delivering high filtration performance over time.
Renhe offers a complete range of air filter adhesives designed for pleating filter paper, bonding metal or plastic frames, and sealing filter bags. Available in granular and stick forms, Renhe adhesives cater to diverse production requirements. The product line includes EVA-, PE-, and PA-based hot melt adhesives, all characterized by excellent heat resistance, chemical stability, and long-term durability—ideal for bonding various air filter components to ensure high-efficiency filtration and extended product life.
Partner with Renhe to enhance the quality and production efficiency of your air filters. Our adhesives meet stringent performance standards and are backed by expert technical support. Contact us today for professional product selection guidance.
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Dec 24 2025 
