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Bayer Coating Raw Materials make Scratches Disappear

Published on 2005-03-09. Author : SpecialChem

Leverkusen -- Even gentle handwashing doesn't help: After only a few years, fine scratches reduce the new car's gloss and put a damper on the owner's pleasure. The current edition of research, the Bayer Scientific Magazine, reports how researchers at Bayer MaterialScience are tackling this problem with a new, environment-friendly coating and a little help from the sun.

All- weather: Ralf Langer places coating speciments in an accelerated weathering device.

Dull car paint is the result of many fine scratches such as those that occur in the car wash or even during handwashing. Even the tiniest of dirt particles on the sponge or brush can leave permanent microfurrows in the gloss coating. In the future, such scratches will simply disappear. Bayer researchers have developed a coating for which fine abrasions are nothing more than small ripples on a pond - a short time later, the surface is again mirror-smooth. The coating just needs to be warmed, and the summer sun is enough to do the trick.

The new coating's flow properties also make it particularly environment-friendly. Because the components of the "2K-PUR Clear Coat", as the coating is known, are also less viscous during application than those typically used before, the automakers can use less solvent, which is easier on the environment.

But a coating can't be too yielding; it has to protect the underlying layers and needs to be able to withstand considerable chemical stress in the form of saltwater, tree resin or bird droppings. The Bayer researchers therefore not only improved the flow properties but also tightened the molecular network to make the coating even more resistant. Car owners can rest assured: the hardness of the coating offers protection against deeper abrasions and chipping, and small scratches simply disappear.

Forward-looking statements

This news release contains forward-looking statements based on current assumptions and forecasts made by Bayer Group management. Various known and unknown risks, uncertainties and other factors could lead to material differences between the actual future results, financial situation, development or performance of the company and the estimates given here. These factors include those discussed in our annual and interim reports to the Frankfurt Stock Exchange and in our reports filed with the U.S. Securities and Exchange Commission (including our Form 20-F). The company assumes no liability whatsoever to update these forward-looking statements or to conform them to future events or developments.

Source: Bayer MaterialScience

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