Michem® Flex Barrier 5770
Brand Family Overview
Michem® Prime functionalized copolymer dispersions deliver the flexibility, water/chemical resistance and barrier properties of polyethylene in a water-based form. Property enhancements include; excellent clarity, adhesion, lower heat seal temperature, toughness, and crosslinkability.See more Michem Prime products.
A water-based topcoat that provides a clear protective coating and improved barrier when used in BOPET/AlOx structures.
Protective coating for AlOx coated PET films
This product is used in many applications including the following:
See more products recommended for Functional Coatings.
These physical properties are typical but should not be considered specifications.
|Appearance||Clear yellowish to brownish, cloudy|
|pH||3.0 - 6.0|
|Shelf Life (mo)||6|
|Freeze/Thaw Stability||None: protect from freezing|
|Percent Non-Volatile||9.5 - 10.5|
|Specific Gravity||0.99 - 1.01|
|Brookfield Viscosity (cps, mPa·s)||0 - 50|
Site of Manufacture (and Product Code)
Michem® Flex Barrier 5770 is designed to be applied onto AlOx coatings produced on Bobst supplied vacuum platforms on BOPET substrates. A thin, dried coating is transparent and contributes to oxygen barrier and AlOx protection of BOPET/AlOX film. Properly coated and dried films are not expected to exhibit blocking to the backside. Suggested coat weight is 0.3 – 0.5 dry gsm. It should be used undiluted and dried thoroughly after application. If needed to adjust coat weight or processability, it is possible to dilute slightly with soft water.