Fluorination Barrier Treatment

The Cary Company - Packaging & Equipment Division

Fluorination prevents container paneling and distortion and reduces chemical permeation, weight loss, odor emission and flavor or fragrance loss. The process exposes the surfaces of plastics and other materials to elemental fluorine under strictly controlled conditions of time, temperature, and pressure. Hydrogen atoms on the exposed surfaces are replaced with fluorine atoms, creating a permanent fluorocarbon barrier on all exposed surfaces. Some common benefits of fluorination are:

Reduces solvent and chemical permeation by up to 1000 times
Available for use on all polyethylene and polypropylene containers
Replace glass, metal, or more costly plastic resin containers with a safe, cost effective alternative

Chemicals and Products that presently use Fluorinated Bottles:

Acetone
Auto Additives
Charcoal Lighter
Degreaser
Electronics Industry Chemicals
Health and Beauty Care Products
Insecticides
Kerosene
Lubricants
Maintenance Chemicals
Paint Thinners (turpentine, etc.)
Plant Growth Products
Waxes, Cleaners and Polishes (various)
Weed Killers and Herbicides
Wood Preservatives

Test data on fluorination barrier treated bottles

These charts show the superiority of fluorinated containers (Level 1) compared to untreated bottles for packaging chemicals. The non-pigmented HDPE bottles were 125 cubic centimeters in size with a nominal wall thickness of 0.5 millimeters.

These weight loss tests were conducted in ovens at 50°C. The container openings were heat sealed with a liner made of aluminum foil polyester-polyethylene to insure leak tightness. Data was obtained by weighing the bottles after a 28 day test.

Chart showing % of weight loss in HDPE containers without barrier treatment due to permeation of various aggressive chemicals.

Surface Modification Treatment for Plastic Containers
BEFORE Fluorination Barrier Treatment	After Fluorination Barrier Treatment

With Out Fluorination Surface Modification treatment for plastic, Some products can easily permeate container walls causing loss of product integrity and often causing paneling. As chemicals permeate through the walls, overall package integrity may also be seriously affected	With Fluorination Surface Modification treatment for plastic, fluorine atoms are bonded to inner and outer surfaces creating a double-sided barrier. Fluorination allows polyolefins (HDPE, LDPE, and PP) to accept a greater range of products and replace glass, metal or more costly plastic resins.

Here is a list of products that we carry that can be Fluorinated...

- Fluorinated Plastic Pails
- Fluorinated Plastic Bottles
- Fluorinated Plastic Jars
- Fluorinated Plastic Drums
- Fluorinated Plastic Canisters
- Fluorinated Plastic Containers

Ask your Cary Sales Representative for more information about how fluorination could help you.

Interested in a price quote on our Fluorination Services or Products?
Email sales@thecarycompany.com or call 630-376-2400 for a quote.

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