As the filter market continues to experience steady growth, it’s important for filter manufacturers to understand the important roles of adhesive and the updated new technologies in order to chase and meet the market’s changes and challenges as well as end-users demand.
How Adhesives are used in filters
Adhesives are used to construct the final assembly in air, oil, water, and HVAC filters. They laminate multiple layers of media together, improving the filter’s efficiency. Filter adhesives are selected based on the following criteria:
- Substrate type
- Fluid being filtered (hot air, fuels, lubricants, etc.)
- Service temperature range
- Adhesive application method
Key Applications for Filter Adhesive
Pleating/Stabilization
Adhesives keep the pleats separated to ensure a uniform flow of fluid and maximize efficiency and capacity. Spiral beads of adhesives are applied to stabilize the media during use.
Frame Assembly/End Cap Bonding
Adhesives are used to bond the filter media to the frame assembly. This includes:
Metal or nylon end caps for oil, fuel and water filters
Plastic or metal frames for high-efficiency air filters
Cardboard frame for HVAC filters
Gasketing
Adhesives are used to bond rubber gaskets to the end caps, or a foam-in-place adhesive can be the gasket itself.
Adhesive Recommendations
HM4278 – Hot melt Polyamide Adhesive
HM4278 is a hot melt polyamide that can be used for filtration and fluid separation purposes, particularly in hot air filters. This adhesive product has a moderate level of flexibility and low viscosity when applied, making it ideal for use in assembly markets. Additionally, it is the best-performing polyamide adhesive available for filter applications.
HM4279LV High-Performance Hot Melt Polyamide Adhesive
HM4279LV is a type of hot melt polyamide that is ideal for use in hot air and oil filters. It has been specially formulated to adhere to a range of materials, such as plastic, metal, and wood, including PVC. This product boasts superior moisture resistance, as well as good heat and high-temperature resistance.
Thermogrip H9389 – Hot melt Adhesive
H9389 is a hot melt polyolefin adhesive that is ideal for general-purpose filters. Its extended open time and exceptional bonding properties to different surfaces make it a top-notch product for the assembly industry.
The utilization of adhesive products for filtration and fluid separation greatly enhances manufacturing processes and ultimately benefits the entire assembly production lines.
