Effects on product from inadequate barrier properties of package.

Produce and other products with respiration often require packaging with controlled barrier properties.

Foods are overwrapped with a second, opaque foil containing package that has higher barrier properties.

This results in the formation of the hydrophobic lipid envelope responsible for the skin's barrier properties.

This is not usually employed when barrier properties are critical.

Styrene does not provide good barrier properties, and exhibits poor impact resistance.

Specific measurements according to target : compaction, barrier property.

Polyurethane coatings are useful because of their barrier properties.

They show excellent barrier properties (against water vapor or oxygen) and a low electrical conductivity.

Among them, Parylene C is the most popular due to its combination of barrier properties, cost, and other processing advantages.