What are the differences between pressure-sensitive gaskets and aluminum foil gaskets when applied to plastic bottles?
Pressure-sensitive gaskets and aluminum foil gaskets differ in sealing performance, high-temperature resistance, chemical resistance, as well as material and size flexibility when used on plastic bottles.
Sealing Performance
- Pressure-sensitive gaskets: Suitable for glass bottles, plastic bottles and hoses, they require no additional equipment, featuring a simple process and affordable cost. With excellent sealing performance and odorlessness, they are ideal for the sealed packaging of food, cosmetics and chemical products.
- Aluminum foil gaskets: Sealed to the bottle mouth after electromagnetic induction heating, they offer moisture-proof and leak-proof effects. Their sealing performance is relatively lower, and they are generally used for internal sealing and heat conduction scenarios.
High-Temperature Resistance
- Pressure-sensitive gaskets: Have poor high-temperature resistance and are generally not suitable for high-temperature environments.
- Aluminum foil gaskets: Made mainly of metallic aluminum, they have strong high-temperature resistance and are suitable for high-temperature applications.
Chemical Resistance
- Pressure-sensitive gaskets: Usually made of synthetic rubber, they possess strong oil resistance.
- Aluminum foil gaskets: With metallic aluminum as the main material, they exhibit good corrosion resistance.
Material and Size Flexibility
- Pressure-sensitive gaskets: Common materials include nitrile rubber, EPDM rubber and other high-elasticity materials. Their sizes can be customized as needed, offering high flexibility.
- Aluminum foil gaskets: Mainly composed of aluminum foil and polyester adhesive, their sizes are relatively fixed, generally thin and small.
In summary, pressure-sensitive gaskets are suitable for scenarios requiring simple, low-cost solutions with high sealing performance requirements, while aluminum foil gaskets are suitable for applications needing high-temperature resistance and chemical corrosion resistance. The selection of an appropriate gasket should be based on specific usage requirements.
