Low permeability nanocomposites

The invention is a halogenated elastomer and clay, ideal flaked off a blend of clay, nano-composites form applies to the air barrier. In one implementation, halogenated elastomer containing C4-C7 ISO-olefin derivatives unit, p-methylstyrene derivatives unit and on-(halogeno methyl styrene) polymers derived units. In another implementation, halogenated elastomer of type butyl rubber. Clay may or may not be and poly blend for peeling before each other. Cross-polymer/clay mixture to the invention of different blends of Nanocomposites in the formation phase. Blends with improved the invention of air barrier performance and suitable for lining or inner tube.