Barrier coatings

Internal and external influences significantly impair the quality of packaging and content. Fat, oil or moisture attack the substrate and damage the printing inks. TerraWet barrier coatings come into operation here. They seal the substrate surface and protect the packaging temporarily against external influences.

Through the employment of TerraWet barrier coating, the packaging remains intact and can fulfill its function without restrictions, even if it is exposed to difficult environmental situations. According to coating very low Cobb values are achieved. This means that the packaging remains stable, also when it is exposed to high moisture levels.

A differentiation is made for coatings for the inner side of packaging, which is exposed directly to the filling material and coatings for the outer side. In addition, there are different types of barriers for the most varied requirements. TerraWet barrier coatings protect the inner sides of fast-food packaging against fat, oil and water; labels of alcoholic drinks against water and alcohol; drinking cups against water; cake trays against fat, oil and water; the outer sides of frozen food packaging against water etc.

Product program		Properties
Coatings for the inner side of the packaging Coatings for the outer side of the packaging Barrier against: Fat Oil Water Dairy products Alcohol (to 50%) Detergent (alkali)		Barrier properties High wet block resistance (according to coating) High scuff resistance (according to coating) Heat resistance (according to coating) Direct food contact (according to coating) Low Cobb values (according to coating)

Printing process: sheet-fed offset (coating unit), flexo printing

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