Waterproof vent seal liner breathable vented gasket
Aluminum foil venting seal liner is widely used in chemical, agriculture,food,fertilizer etc fields.
Material of venting film:ePTFE
Feature of venting film:waterproof,dustproof,oilproof,breathable...
The sealing way:sealing film+Alu foil+wax+cardboard
Material of gasket:PET
The bonding between the breathable film and the gasket is accomplished by hot pressing welding machine.
Waterproof vent seal liner breathable vented gasket can be used on bottle whose cap has hole,also can be used has no hole.
For container covers without holes,the gas will pass through the porous expanded ePTFE permeable film and reach above permeable film area,which is then guided to the threaded position of the container cover to escape while preventing liquid and particles from entering the package.Multiporous turgor a ePTFE breathable membrane prevents pressure buildup by continuously balancing the difference in pressure between the interior of the container and the external environment.
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