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05-06-2008

PU dispersion Bayhydrol UV XP 2649

More Rapidly to the Feel-Good Surface

Using the new PU dispersion Bayhydrol UV XP 2649, part of the Bayhydrol UV product range from Bayer MaterialScience, Leverkusen, Germany, water-based UV-crosslinking paints for softtouch coatings on plastics can be produced for the first time. Apart from the rapid curing time (drying time and UV crosslinking) of less than five minutes the advantage of this surface treatment lies in its soft and high-quality feel. A pleasant feel to the touch usually settles the decision to buy or not to buy mobile telephones or MP3 players for example.

The short curing process for these UV paints in coating operations means high productivity without losses in handling quality and durability. Paints manufactured from the cosolvent- free product are just as resistant to water and solvents, for example, as the water- based two-component paints usually employed. For UV-curing softtouch paints the same rules apply in principle as for two-component PU systems: if very high durability characteristics are required, the pleasant tactile effect must be reduced by suitable formulations.

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