Fluorination is especially suitable for the following:
Automotive additives Car care products
Cleaning fluids Degreasers
d-Limonene Essential oils
Flavours / Essence concentrates Fragrances
Lubricants Paint thinners
Everything that isn't already fluorinated will fluorinate, but the material has also to be fluorine compatible and give sufficient benefit to make the process commercially worthwhile.
Any polyolefin fluorinates very well, but in addition to HDPE, LDPE, PP and UHMW-PE a variety of other materials, such as thermoplastics, rubbers and elastomers gain significant benefit from fluorination.
Fluoro-Seal is a conversion of the surface of the plastic containers by reaction with fluorine gas under highly controlled conditions to dramatically enhance resistance to solvents and aggressive chemicals.
Bettix Ltd offer a number of standard levels of fluorination and a host of customer specific levels. The choice of which level of fluorination is dependent on the application and a host of other variables. For this reason, we always strongly recommend product testing to establish the correct fluorination treatment level required for your particular application. To this end, we offer a free-of-charge sample treatment service and technical advice. Please contact our sales team to discuss your container problems, and we will suggest which levels to try.
Items to be treated are sealed in a vacuum autoclave on our Bolton site and exposed to measured amounts of elemental fluorine gas under tightly controlled conditions. Following treatment, the autoclaves are evacuated to high vacuum and purged with filtered fresh air to ensure the removal of all reaction residue.
The fluorinated layer is not a coating or lacquer; it is a chemical conversion of the existing surface and as such is atomically bonded to the parent plastic. The treatment is permanent and the layer is not readily removable nor does it become unbound with time. The fluorinated layer would have to be removed by mechanical abrasion to destroy the surface.
A test piece is taken and put into every treatment and its fluorination status is checked using FT-IR infra-red photo spectroscopy.
Records of every test are maintained against reaction number and date, along with a full production log, and a certificate of conformity is issued with every order.
The rules for fluorination performance are as follows:
These parameters result in the best performance for a given level of fluorination, however, that does not mean that other containers or materials can't be fluorinated.
Yes, just about every colour of bottle has fluorinated successfully. There can be a slight bleaching of certain colours and so sample testing is important. It should be remembered that the optimum performance is obtained from natural unpigmented plastic, and so container colour may become a consideration for particularly challenging packaging applications.