Permeability of Arnitel®

From the world of construction to the medical, textile, packaging industries, there is growing demand for high-tech films and coatings that combine a number of properties including flexibility, elasticity, and permeability to water vapor, chemical resistance and thermal resistance.

Moisture permeability

Arnitel's high moisture vapor transmission rate makes it highly suited for film applications requiring breathability and water impermeability, and yet it is easily melt processable. Arnitel has the advantage of being elastic and waterproof, while still having excellent mechanical properties. Arnitel films exhibit high abrasion resistance, high thermal stability, good resistance to weathering and chemicals and, being monolithic and not microporous, are impermeable to bacteria and blood.

Specific Arnitel grades are approved by FDA for food contact and some grades are approved by USP IV and USP VI, and ISO 10993 standards. Please contact us if you require information on Arnitel for films with these approvals.

Low permeability to automotive fuels

While Arnitel’s permeability to moisture is an advantage for some applications, Arnitel’s very low permeability and low absorption of automotive fuels makes it a winner for applications where the transfer of automotive fuel is required. Arnitel’s lower permeability when compared with PA12 gives Arnitel a distinct edge in performance over competition.

Arnitel properties

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Mechanical properties
Chemical properties
Thermal properties
UV resistance
Membrane permeability
Processing

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Arnitel® is a registered tradename of Royal DSM.