Press and Seal Liners, aka Pressure Sensitive Liners, are made of adhesive coated foam. The liners will adhere to the container by closing the lid to the container without any special tools.
To ensure customer confidence and prevent tampering of the product, Press and Seal Foam Liners are used for this purpose. In addition, Press Sensitive Foam liners are also used for:
1. Prevent leak of liquid products
2. Prevent products come in contact with air to maintain a longer shelf life. Certain ingredients used in beauty products are sensitive to oxygen and will result in oxidation and hence jeopardize the product's effectiveness.
3. Creates customer confidence in purchasing the product when the product appears to be sealed.
4. To allow the safe return of the product in the event the customer decides not to keep their purchase. The product in the container with the Press and Seal Liner will ensure the integrity of the product has not been compromised.
The actual size of the Press and Seal Foam Liner is 1mm to 2mm smaller than the product specifications, so when it comes to selecting the size of the Press and Seal Liners, purchase a liner that is 2mm to 3mm larger than the diameter of the beauty container opening that you are trying to use the liner on. The liner will need a bit of room to be able to curve down around the rim of the beauty container opening to seal the container properly. The adhesive material is spread out thru the entire liner, so the glue-down edge does not have to be perfectly exact.
It's very important to perform proper fitness tests on product compatibility to ensure it does not degrade the liner over time. Products contain high-level alcohol or fragrance will tend to degrade the liner.
How to use the Press and Seal Liner:
Once you have selected the appropriate size of the Press and Seal Liner, ensure the beauty container's rim is completely dry and free of the product, then place the liner on the rim of your beauty container. Press and screw on the cap to the beauty container tightly. Leave the Press and Seal Liner in place for 30 to 45 minutes to allow the adhesive to release so the liner can firmly be attached to the rim.
Due to the entire liner is made of the same material, in the event you are unable to find the exact liner size for your specific cosmetic jar, you can cut it down to size.
Not all containers are designed to be used with press and seal liners so you will need to perform some testing to determine if the liners can work with your specific container.