Exceval is the trademark of Kuraray’s chlorine-free barrier resin, especially designed for the requirements of the barrier coating industry. The new Ethylene-Modified copolymer is water-soluble like standard polyvinyl alcohol. However, coatings made of Exceval absorb significantly less humidity at average temperature conditions. Therefore, Exceval provides coatings with excellent gas barriers, e.g. towards oxygen, nitrogen and carbon dioxide – even at elevated relative humidity. Furthermore, the resulting coatings are highly transparent and glossy, have a strong chemical resistance, and provide good adhesion to metal as well as excellent printability
Exceval can be applied as a solvent free, chlorine-free and environmentally-friendly waterborne coating on numerous substrates and provides superior barrier level compared to traditional coatings.
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