This barrier coating reduces the amount of mercury needed from approximately 15 mg to 3 mg per lamp.
In industrial applications, where space is at a premium, thermal barrier coatings are commonly used to protect from heat loss (or gain).
In industry, thermal barrier coatings are produced in a number of ways:
Passive barrier coatings are only good if they stay intact.
These properties make zirconia useful as a thermal barrier coating, although it is also a common diamond substitute.
The barrier coating must hold the liquid and prevent migration of air and flavors through the paperboard.
The barrier coating depend of the application and might be applied on both sides.
For long shelf life products it is common to use aluminium foil as barrier coating together with polyethylene.
Some combustors also make use of thermal barrier coatings.
The bond coat adheres the thermal barrier coating to the superalloy substrate.
