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New Coatings Technology Used For Bayer Building Facelift

Published on 2005-03-11. Author : SpecialChem

PITTSBURGH -- Bayer employees don't have to go far to see the advantages of Bayer MaterialScience's latest coating technology. They can simply admire the recent facelift performed on Building 8 at the corporate headquarters in Pittsburgh. Attendees of World of Concrete also got a closer look at this new technology. Bayer highlighted its coatings technology at World of Concrete, held Jan. 18-21, 2005, in Las Vegas.

The facelift to Building 8 at the Bayer corporate headquarters in Pittsburgh utilized Bayer MaterialScience's own latest coating technology to remedy the problems time and the elements have caused on the painted metal surfaces of the building.

The metal, glass and brick building, originally constructed in 1980, has always been architecturally pleasing, but time and the elements have taken their toll on the painted metal surfaces. Oxidation has dulled the color, and in some areas, harsh weather has worn away the top coat protection. What's more, the metal surfaces have been scratched by growing trees and shrubs. Over the years, two additions were added to the original structure. Naturally, the additions aged differently, creating several color variations that contributed to the unsightly look.

Bayer chemists worked closely with the coatings manufacturer, Tnemec Company, Inc., to formulate a paint that would deliver the look, quality, and cost-effectiveness that they desired. Extensive analysis was performed on the existing coatings in six different areas of the building. Special attention was given to the existing coatings because it was critical to formulate a product that would provide a quality adhesion between the old and new coatings, and to minimize the contractor cost for surface preparation.

In 2003 a test patch was applied to the building and allowed to sit for one calendar year to determine the coatings adhesion, weatherability, color and gloss retention and corrosion resistance capabilities. The tested coating system met all of Bayer's criteria - plus being environmentally friendly with low VOC's and low odor.

The primer, Tnemec's Omnithane Series 550, a single component, moisture cured polyurethane, provides excellent adhesion to steel, rust, and aged coatings. The top coat, Endura-Shield Series 1080, utilized a new waterborne, air dry technology developed jointly by Bayer and Tnemec, and provides excellent abrasion resistance and color and gloss retention. The coating contains Desmodur® N 3600 aliphatic polyacrylic dispersion and Bayhydrol A145, an aqueous hydroxyl-functional polyacrylic dispersion made by Bayer MaterialScience. The stripe detail on the building was coated with Tnemec's Endura-Shield Series 175, an aliphatic acrylic polyurethane.

Paint contractor Richard Lampenfield Painting, Inc. meticulously prepared the surface for the coatings by first power washing the building using biodegradable, environmentally friendly detergent, then sanded and performed minor hand tooling to assure the elimination of rust in worn areas. Exposed areas were spot primed, then rollers and brushes were used to apply the paint.

"Since most painting projects are labor-intensive, it pays to use the best coating system possible - one that looks great, protects best and lasts the longest," says Carl Angeloff, manager of market development for the Maintenance and Monomers coatings business for Bayer MaterialScience. "Although the project took six months to complete, the coating is expected to look great for another 20 years."

Bayer MaterialScience LLC is one of the leading producers of polymers and high-performance plastics in North America and is part of the global Bayer MaterialScience AG with 18,000 employees at 40 sites around the world and 2003 sales of 7.5 billion euros. Our innovative developments in coating, adhesive and sealant raw materials, polycarbonates, polyurethanes and thermoplastic urethane elastomers enhance the design and functionality of products in a wide variety of markets, including the automotive, construction, electrical and electronics, household and medical industries as well as the sports and leisure fields. Our inorganic basic chemicals unit produces chlorine and related essential products for the chemicals industry. Let us give life to your vision. Bayer MaterialScience - Where VisionWorks.

Bayer MaterialScience is part of the worldwide Bayer Group, an international health care, nutrition and innovative materials group based in Leverkusen, Germany. Bayer employs 23,300 in North America with net North American sales of 8.8 billion euros in 2003. Bayer's three operating business areas - HealthCare, CropScience and MaterialScience, improve people's lives through a broad range of essential products that help diagnose and treat diseases, protect crops and advance automobile safety and durability.

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 public reports filed with the Frankfurt Stock Exchange and 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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