Michem® Flex Barrier 5770

Brand Family Overview

Michem® Lube is a versatile family of nanoscale wax emulsions, mostly carnauba and paraffin-based, used to improve processing and performance in many industries, as well as provide a wide array of surface properties.

See more Michem Lube products.

Usage

A water-based topcoat that provides a clear protective coating and improved barrier when used in BOPET/AlOx structures.

Description

Protective coating for AlOx coated PET films

Performance Attributes

This product is used in many applications including the following:

ApplicationProperties Imparted
Functional Coatingsbarrier

See more products recommended for Functional Coatings.
Physical Properties

These physical properties are typical but should not be considered specifications.

AppearanceClear yellowish to brownish, cloudy
pH3.0 - 6.0
Shelf Life (mo) 6
Freeze/Thaw StabilityNone: protect from freezing
Percent Non-Volatile9.5 - 10.5
Specific Gravity0.99 - 1.01
Brookfield Viscosity (cps, mPa·s) 0 - 50
Spindle Number1
RPM60

Site of Manufacture (and Product Code)

CIN (MFB5770)
AUB (MFB5770.E)
SNG (MFB5770.S)

Application Data

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.