← Back to Articles

A PS22 liner is made of .020”thick polystyrene foam disc with an EVA-wax type adhesive that is released when the closure is properly torqued onto the container. The liner is designed to stay in place even after the cap has been removed. These liners will adhere to both plastic and glass bottles and jars. These liners provide a one-time seal to be removed by the end user. The benefit of this type of cap is that no secondary equipment is required to apply them.

While these seals when properly applied can create a moisture barrier for keeping products inside dry, they are not considered by the FDA to be tamper evident.

Suggested Product Uses: dry products, pharmaceuticals, nutraceuticals, candy, and spices.

Not good with: oil or other liquids.

Note: Keep liners away from direct heat and sunlight.

How to apply:

  1. Allow liners to adjust to your process room temperature for 48 hours. Temperature should be between 60°F to 80°F.
  2. Wipe the lip of the container with a clean cloth. If lip is not clean the liner will not adhere.
  3. Screw closure with PS22 liner all the way down onto the container. Failure to screw closure all the way down may result in a poor seal.
  4. Let sit for 24 hours to allow liner to fully adhere to container. We recommend that samples be purchased for testing with your specific application.
Title: What is a PS22 liner?
Description: Information on PS22 Pressure Sensitive liners.
Published: 6/27/2013
Last Edited: 12/28/2022
27 users found this article useful. Was this article useful to you?

Information disclaimer:

The information contained in this article is for general information purposes only. The information is provided by United States Plastic Corp. and while we endeavor to keep the information up to date and correct, we make no representations or warranties of any kind, express or implied, about the completeness, accuracy, reliability, suitability or availability with respect to the website or the information, products, services, or related graphics contained on the website for any purpose. Any reliance you place on such information is therefore strictly at your own risk.

In no event will we be liable for any loss or damage including without limitation, indirect or consequential loss or damage, or any loss or damage whatsoever arising from loss of materials, time or profits arising out of, or in connection with, the use of this information.