Packaging 101

FH Packaging is one of the industry leader in providing accesible information regarding all of our containers. In the packaging industry one can get lost in the specifics of bottles and containers. We did our very best in providing you the break down of how a bottles neck is measured, to which liner and plastic is perfect for you. Here at FH we believe in “Better Innovation and Better Packaging”

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.

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 Liners or Seals

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.

Plastic Packaging Recycling Codes and Typical Plastic Properties

PETE

Polyethylene Terephthalate

HDPE

High Density Polyethylene

PVC

Polyvinyl Chloride

LDPE

Low Density Polyethylene

PP

Polypropylene

PS

Polystyrene

Other Plastics

ClarityClearTranslucentClearTranslucentTranslucentClear
Oxygen BarrierAverageAbove AveragePoorAbove AverageAbove AveragePoor
Moisture BarrierGreatPoorGreatPoorPoorAverage
Max Temp120ºF145ºF140ºF120ºF165ºF150ºF
RigidityModerate to HighModerateModerate to HighLowModerate to HighModerate to HighPlastic ID Code “7” is for other plastic
Resistance to ImpactGood to ExcellentGood to ExcellentFair to GoodExcellentPoor to GoodPoor to Good
Resistance to HeatPoor to FairGoodPoor to FairFairGoodFair
Resistance to ColdGoodExcellentFairExcellentPoor to FairPoor
Resistance to SunlightGoodFairPoor to GoodFairFairPoor 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]