Plastics are inherently permeable to certain gases and liquids. This is why plastic containers lose some of their contents over time. Such permeation causes odours and impacts the environment. The weight and properties of the contents change, and labels may peel off. Components migrating from plastic materials may change the product properties to an extent that causes component failure. Fluorination prevents such adverse effects, and very often a more cost-efficient packaging material can be used.

Fluorinated surfaces act like a barrier against nonpolar substances. Inner and outer container surfaces modified by fluorination reduce the permeation of short-chain solvents, coolants, glycerine and petrol. The diffusion of material components through and from the fluorinated surface is significantly reduced.

• To reduce the the permeation of petrol and diesel fuel from tanks of motor vehicles and other equipment
• To limit the migration of softeners and other additives, preventing plastics from becoming brittle
• To improve resistance to acidic and caustic solutions, preventing surfaces from swelling or becoming greasy