Commonly Used Closure Liners
There are many factors you will need to consider when choosing the right liner for your product. Such as preserving freshness, tamper evidence, requiring additional, special equipment, and product reaction to the liner material. A wrong decision can be detrimental to your product and brand. To aid you in your decision, we offer you a brief description of some of the most commonly available liners, their characteristics and their benefits. 



Foam (F-217) Liners - Foam is one of the most commonly used liners. Typically, they consist of a layer of low-density foam sandwiched between a top and bottom layer of polyethylene (PE). Foam liners stay in the cap and are able to reseal well, making them great at helping preserve freshness and preventing spills and leaks. Since the liners do not provide a tamper evident seal, you may wish to include the additional security of Shrink Bands to your closure system.

  • Works well with a wide range of products..
  • Can be used with plastic, glass, or metal containers
  • Not tamper evident

Common Uses

This is a good, general-use liner. Compatible with most applications.
Food & Beverages, Health Care, Personal Care, Industrial & Chemical, Pet Care, Art Hobby & Craft.




Pressure Sensitive (PS-22) Liners - If you are looking for a liner that provides a tamper evident seal, the pressure sensitive liner is a great option. These liners are designed to adhere to the rim of the bottle and have to be removed by your customer before they can use your product. Pressure sensitive liners usually consist of Polystyrene foam pressed into the underside of a closure and topped with a layer of sticky adhesive. When you screw down the cap the adhesive activates and seals the liner to the bottle or container.

  • Tamper Evident
  • No need for a special machine to get it to seal
  • One time use. Does not reseal
  • Great for dry products and powders
  • Not recommended to be used with most liquid products (they can be used with thick, viscous liquids like syrups and honey)

Common Uses

Dry Goods, Aromatic, Chemicals, Viscous Liquids and Syrups
Food & Beverages, SaucesPersonal Care, Industrial & Chemical, Pet Care, Art Hobby & Craft.




Heat Induction Seal (HIS, Foil) Liners - We have all had to remove a foil liner from a ketchup bottle, vitamin bottle, juice bottle, or just about any bottle we brought home from the grocery store. There is a reason that most products you see at the store have a foil liner and why heat induction seals (HIS) are used with a wide variety of products. HIS liners provide the best seal out of all of the liners we have previously mentioned. Not only are they airtight prolonging shelf life, they provide the tamper evident seal most of our customers are looking for. They do however require additional equipment, like our Heat Induction Machine, to work effectively. HIS liners can also be specific to the type of plastic or material your bottle is made from. Our sales team can help make sure we get you the right liner for your container.

  • Tamper evident seal
  • Airtight seal
  • Ideal for liquids and pharmaceuticals
  • Longer shelf-life
  • One time use
  • Requires the use of an HIS Sealer Machine

Common Uses

Liquids, Aromatic, Chemicals,
Food & Beverages, Sauces, Cosmetics, Industrial & Chemical, Health Care, Pet Care, Art Hobby & Craft.



Plastisol Liners - A plastisol liner is a bead of rubber sealant applied as a gasket directly to the inside of a metal closure. Designed primarily for sealing metal closures to glass containers, plastisol liners are most often used in hot-fill, or canning (immersion in hot water) applications. The heating and then subsequent cooling of the container, creates an airtight seal.

  • Airtight seal
  • Excellant resistance to chemicals (test with your product)
  • Ideal for high temperature hot-fills, long-term storage and preservation,
  • Longer shelf-life

 Common Uses

Liquids, Hot-Fill Products
Preserves & Canning, Sauces, Sea Food 




Polycone (Phenolic) Liners - Consisting of Low-Density Polyethylene (LDPE) plastic, Polycone are a pre-formed, cone-shape liner that is pressed into the base of the closure. Primarily found in Phenolic closures, Polycone liners are specifically designed to serve as chemical barriers for liquids and oils. These liners mold themselves to the necks of the bottles as the caps are screwed on, creating an exceptionally tight, seal. Eliminating leakage, evaporation, and contamination. Polycone are hard-working, durable liners that will recompress and reseal through multiple uses to the neck of the container without binding or backing off.

  • Reseals every time the cap is screwed back onto the container
  • Stress and crack resistant
  • Airtight seal prevents leaks
  • Excellant chemical barrier (test with your product)
  • Ideal for liquids, chemicals and pharmaceuticals

Common Uses

Liquids, Chemicals, Essential Oils, PCB Oils
Personal Care, Health Care, Pet Care, Industrial & Chemical



 pulp liner

Pulp Liners - Pulp liners usually consist of a layer of cardboard or similar cellulose material, laminated to a protective layer of polyethylene or polyvinyl plastic. These liners can be laminated with special "barrier" layers laminated to the pulp backing in order to meet specific needs. Most commonly used with metal closures intended for metal containers.

  • Reseals with each application of the closure
  • Airtight seal prevents leaks
  • Excellant chemical barrier (test with your product)

Common Uses

Liquids, Solvents, Chemicals, paints, fertilizers, insecticides and fuels.
Automotive, Cleaning & Janitorial, Commercial Chemicals, Home & Garden, Pet Care

We advise that you obtain samples of our products and test them with your containers and product before you place any large orders. Free samples of our liners and closures are readily available via our website.
If you have any questions, Call us at 360-889-0152.

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