Hot Melt Adhesive for Air Filter Assembly – High-Performance Bonding Solution

The hot-melt adhesive for air filters is a type of hot-melt adhesive specifically designed to meet the bonding needs of various components in the production process of air purifiers, belonging to the category of thermoplastic adhesives. It is applied after being melted by heating and can quickly solidify to form a bonding effect upon cooling. It features solvent-free properties, good environmental friendliness, and convenient operation, making it suitable for bonding scenarios involving the complex internal structures of air purifiers. According to specific bonding requirements, hot melt adhesives for air purifiers can be divided into EVA hot melt adhesives and polyolefin hot melt adhesives.

Advantages:

Low Viscosity: Excellent fluidity, glue-saving, and suitable for automated lines. With strong fluidity, it enables uniform application without clogging equipment; it uses less glue than high-viscosity alternatives while achieving the same bonding effect. This not only reduces costs but also prevents excessive glue overflow from contaminating products

Fast Curing Speed: Improves bonding efficiency and adapts to mass production. After application, the hot melt glue achieves initial fixation in seconds, avoiding assembly displacement or peeling caused by slow curing.

High Bonding Strength: Stable connection without detachment, impact resistance, and aging resistance. After curing, the hot melt glue forms a high-strength bond with the filter medium and frame of the filter; during peeling, the filter medium breaks while the glue layer remains intact.

Good Thread-Breaking Performance: Optimizes operational experience and avoids product contamination. When the glue gun pauses or switches substrates during assembly, the hot-melt glue rarely leaves residual threads. No excess glue threads wrap around equipment or adhere to product surfaces, preventing product contamination or appearance damage.

Good High-Temperature Resistance: Adapts to extreme storage environments for long-term stability. It can withstand high temperatures, and the glue layer will not soften or flow when exposed to prolonged high-temperature conditions. When products are stored in high-temperature warehouses or transported outdoors in summer, the bonded areas remain firmly attached, preventing peeling due to high-temperature aging—especially suitable for customers in high-temperature regions.

Good Low-Temperature Resistance: Breaks low-temperature limitations for reliable winter use. It maintains good molten fluidity and bonding activity in low-temperature environments. During assembly in low-temperature regions, the glue bonds quickly after application, and the cured glue layer does not become brittle; the bonding strength remains unchanged when products are stored in low-temperature warehouses or transported in winter.

Low Odor: Compliant with environmental standards and suitable for clean scenarios. The hot melt glue features a low-VOC formula, releasing almost no odor during curing. It does not irritate operators in the assembly workshop or contaminate filter media; finished filters have no residual glue odor. No odor is generated from the glue layer decomposition during long-term use.

Good Flexibility: Suitable for irregular-shaped bonding, bending resistance, cracking resistance, and long-term stability. After curing, the glue layer has good flexibility and can bend with slight deformation of the filter medium and frame. When bonding irregular structures, the glue layer closely fits curved surfaces, avoiding bonding gaps and improving sealing performance.

Working Temperature: 130-180℃

Viscosity(160℃): 3000-15000

Softening Point: 85-120℃

Colour: light yellow granule, white granule

25KG/BAG