Packaging 101

FH Packaging is a leading provider of accessible information on all types of packaging containers. We understand that the packaging industry can be confusing, especially when it comes to the specifics of bottles and containers. That’s why we’ve done our best to provide you with clear and concise information on everything from bottle neck measurements to liner and plastic types.

At FH, we believe in “Better Innovation and Better Packaging.” We’re committed to helping you find the perfect packaging solution for your needs.

What is a Container Finish?

In the packaging industry, the material around the neck opening of containers or the inside dimensions of its closure is referred to as “finish”. The type of finish is seen in a formats like: 20/410 or 20-410. There are two important parts to these formats: the first number refers to the diameter in millimeters and the second number refers to the thread count.

Why is Understanding Finishes Important?

Knowing the finish of your container is important for several reasons:

  • It helps you choose the right closure for your product.
  • It ensures that your product will be safe and secure.
  • It can help you reduce packaging costs.

FH Packaging: Your Trusted Packaging Partner

If you’re looking for a reliable and knowledgeable packaging partner, look no further than FH Packaging. We have a wide range of products and services to offer, and we’re always happy to help you, Call us today at 951-848-7680, or email at [email protected].

To get these measurements, you will first need to find the diameter (measured in mm). 

For a bottle:

Measure from the outer edge of the thread on one side to the outer edge of the thread on the opposite side. For example, if the neck measures 24mm, then it requires a 24mm closure as shown below:Bottle Neck Length

For a cap:

Measure from the inside wall of the cap to the opposite inside wall as shown below: Bottle Thread Lenght

Thread Count:

If the thread loops around the neck and passes over itself one time, then it is considered a 400 finish. If the thread passes over itself one and a half times, then it is considered a 410 finish.

If a thread passes over itself 2 times, it is a 415 finish. Below are examples of the most common thread counts:

We reccomend requesting samples and testing bottles with closures before making a purchase

Types of Liner Spec Sheet Chart with L.L. Linerless Unlined or No Liner F217 (Tri-Seal) PS - PS-22 P.V - PULP/Vinyl P/VAF SA-66 P/PE PW Cone Liner P/RVTLF or PVLF P/AFPET P/O P/SF P/SOLVSEAL P/TEFLON PE P/WPW PLASTISOL P/TF 14b WHITE RUBBER f1410 P/AF HS (HEAT SEAL) Liners

L.L. – LINERLESS

  • A closure that has been engineered to function in specific application without the use of an additional liner.

PW

  • Pulp board with wax coating on one side.

PE

  • Solid extruded polyethylene.v

UNLINED OR NO LINER

  • A closure with no special sealing features and no liner.

CONE LINER

  • Cone-shaped solid polyethylene

P/WPW

  • White paper laminated to pulp board with a wax coating on the white paper

F-217 (TRI-SEAL)

  • A foamed low-density polyethylene core between two solid layers of LDPE

P/RVTLF OR PVLF

  • Vinyl coating applied to HDPE-coated white paper laminated to pulp board with lubricant film over vinyl

PLASTISOL

  • Vinyl chloride resin applied as a liquid and baked to a final form.

PS – PS-22

  • Pressure-sensitive adhesive coated on polystyrene foam.

P/AFPET

  • Polyester film applies to aluminum, foil, poly bonded to paper and laminated to pulp board

P/TF

  • Tin foil laminated to paper and bonded to pulp board

P.V. – PULP/VINYL

  • Vinyl laminated to pulp board.

P/O

  • Pulp and oilpaper

14B WHITE RUBBER

  • White vulcanized styrene-buta-dine rubber.

SA-66

  • Polyester film laminated to aluminum foil bonded to pulp board

P/SF

  • Pulp and Saran Film

F1410

  • Teflon/silicone rubber/ polypropylene film

P/VAF

  • Pulp and vinyl coated aluminum

P/SOLVSEAL

  • Laminated pulp board

P/AF

  • Aluminum foil laminated to paper and bonded to pulp board.

P/PE

  • Polyethylene-coated white paper laminated to pulp board

P/TEFLON

  • Teflon on pulp board

HS (HEAT SEAL)

  • Induction sealing is a no contact heating process that accomplishes the hermetic sealing of a container with a closure that includes a heat-sealable foil laminate. The typical induction inner seal begins as a multi-laminate liner inside a closure. It consists of a polymer that is compatible with the bottle material and capable of heat-sealing to the lip of the container when the closure is placed onto the container and is passes through a heat source – usually an electromagnetic field produced by an induction heater.

Lids with Liners

Take a look at some of our closure with liner such as foam and PS liners below to view which one fits your packaging preference. At FH Packaging we love to provide excellent customer service, If you need help in choosing a specific cap or liner for your packaging be sure to contact us.

Non-Dispensing Caps
Non-Dispensing Caps

314 Products

Metal and Aluminum Caps
Metal and Aluminum Caps

16 Products

Child Resistant Caps
Child Resistant Caps

59 Products

Smooth and Ribbed Caps
Smooth and Ribbed Caps

203 Products

Plastic Packaging Recycling Codes and Typical Plastic Properties

Packaging 101 Spec Sheet Chart with Polyethylene Terephthalate High Density Polyethylene Polyvinyl Chloride Low Density Polyethylene Polypropylene Polystyrene Other Plastics
 

PET

Polyethylene Terephthalate

HDPE

High Density Polyethylene

PVC

Polyvinyl Chloride

LDPE

Low Density Polyethylene

PP

Polypropylene

PS

Polystyrene

Other Plastics
Clarity Clear Translucent Clear Translucent Translucent Clear –
Oxygen Barrier Average Above Average Poor Above Average Above Average Poor –
Moisture Barrier Great Poor Great Poor Poor Average –
Max Temp 120ºF 145ºF 140ºF 120ºF 165ºF 150ºF –
Rigidity Moderate to High Moderate Moderate to High Low Moderate to High Moderate to High Plastic ID Code “7” is for other plastic
Resistance to Impact Good to Excellent Good to Excellent Fair to Good Excellent Poor to Good Poor to Good –
Resistance to Heat Poor to Fair Good Poor to Fair Fair Good Fair –
Resistance to Cold Good Excellent Fair Excellent Poor to Fair Poor –
Resistance to Sunlight Good Fair Poor to Good Fair Fair Poor to Fair –

Plastic Containers

Take a look at some of our plastic containers below to view which one fits your packaging preference. At FH Packaging we love to provide excellent customer service, If you can not find the containers you are looking for be sure to contact us below on our LivecChat tool in the bottom right corner. Contact us through phone or email:

Phone: (951)-848-7680

Email: [email protected]

PET Cosmo Rounds
PET Cosmo Rounds

46 Products

Single Wall Plastic Jars
Single Wall Plastic Jars

26 Products

Plastic and Glass Droppers
Plastic and Glass Droppers

218 Products