Air filter production glue

Polyurethane Adhesive

Polyurethane adhesive is used in the production of air filters due to its excellent adhesion to various surfaces, including galvanized and polyamide materials. This type of adhesive has the following advantages:
- Excellent adhesion: to various polymeric and metallic surfaces.
- High thermal and chemical resistance: allowing it to maintain its performance in harsh environmental conditions.
- Two-component: these adhesives are produced as two-component systems based on polyurethane, suitable for both manual and machine application.

Polyurethane adhesive is used in the production of various air filters for light and heavy vehicles, industrial filters, oil filters, gasoline, and diesel filters. It is also used for bonding air filter paper.

Hot Melt Adhesive

Hot melt adhesive is another type of adhesive used in the air filter manufacturing industry. These adhesives are made from wax or plastic, which are heated during application and applied hot. Upon cooling, they rapidly gain strength. Hot melt adhesives have the following advantages:
- High curing speed: they rapidly gain strength upon cooling.
- Chemical compatibility: usually made from materials that are compatible with the surfaces used in the filter.

Reactive Polyurethane Hot Melt Adhesive

Reactive polyurethane hot melt adhesive combines the advantages of hot melt adhesives with the hardness resulting from the cross-linking of polyurethanes. These adhesives ultimately cure under the influence of environmental moisture and have the following advantages:
- High curing speed
- High hardness and durability: due to the cross-linking of polyurethanes

Choosing the Right Adhesive

Choosing the right adhesive for air filter production depends on various parameters:
- Compatibility with the fluid: the adhesive must be compatible with the fluid that will be filtered.
- Operating temperature: the adhesive must perform well at the filter's operating temperature.
- Product lifespan: the adhesive must have sufficient durability and stability to increase the filter's useful life.

Required Adhesive Quantity

Air filter manufacturers typically purchase adhesives in bulk to save costs. Using bulk adhesives also requires dispensing equipment and material handling. Higher adhesive consumption can shorten the return on investment period for dispensing equipment.

Advantages of Using Hot Melt Adhesives in Air Filter Production

Hot melt adhesive is a widely used material in air filter production due to its numerous features and benefits, which include:

1. Excellent quality and long-term stability: due to its stable chemical structure, hot melt adhesive has a long lifespan and helps maintain the filter's quality over time.
2. High production speed and volume: the hot melt adhesive application process is quick and efficient, enabling high-speed mass production.
3. Short bonding time: this adhesive quickly cools and hardens after application, reducing the time required for the production process.
4. Resistance to various stresses: hot melt adhesive has high resistance to various tensile, compressive, and torsional stresses, increasing the filter's durability and strength.
5. Recyclability of waste materials: waste materials from hot melt adhesive are recyclable, helping to reduce material wastage and protect the environment.
6. No need for drying equipment: this adhesive quickly cools and hardens after application, eliminating the need for additional drying equipment.
7. No environmental pollution and fire hazard: hot melt adhesive reduces environmental and fire hazards due to the absence of flammable solvents.
8. Re-meltability: hot melt adhesive can be re-melted after cooling, allowing for the repair and reconstruction of parts.

Wide Applications of Hot Melt Adhesives

Hot melt adhesive is used in many industries due to the aforementioned advantages, including:
- Automotive light manufacturing: for bonding various light components.
- Industrial and automotive air filter manufacturers: for bonding different filter components.
- Automotive interior decoration: for connecting decorative parts.
- Electronics and telecommunications industries: for connecting and sealing parts.
- Footwear manufacturers: for bonding shoe components.
- Furniture, chair, and mattress manufacturers: for bonding various materials.
- Printing and bookbinding industry: for binding pages and book covers.
- Food packaging and labeling industries: for attaching labels and packaging.
- Pharmaceutical and cellulose industries: for producing products like tissues, diapers, and sanitary pads.