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SABIC Innovative Plastics

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SABIC Innovative Plastics’ Tough Lexan* Sheet for Train Window Frames Helps Plexx Stay on Track with Lower Costs and Streamlined Production

A K 2010, SABIC Innovative Plastics announced that its new ultra-tough, flame-retardant (FR) Lexan* F6000 polycarbonate (PC) sheet has been chosen by Plexx AS, a leading Norwegian plastics converter, to thermoform European passenger train window frames.

Pittsfield, MA, December 01, 2010 --( The frames will be used in Norwegian State Railways train cabins. This advanced, tailor-made PC material replaces sheet molded composite (SMC) for significantly improved performance and faster cycle times, while avoiding the multiple secondary operations required for SMC. SABIC Innovative Plastics is helping customers succeed in the highly competitive transportation sector with advanced solutions that provide high performance, system cost savings, and superior end-product differentiation vs. thermoset materials.

“We had two main goals in upgrading from SMC to Lexan F6000 sheet: cutting the cost of the window frames and developing a much improved product for market differentiation,” said Arild S. Johnson, managing director, Plexx AS. “With SABIC Innovative Plastics’ help, we achieved these goals and more. Compared to SMC, Lexan sheet is faster and easier to process, provides greater design flexibility and toughness, and keeps its attractive appearance even after heavy use. In short, the SABIC Innovative Plastics team gave us a customized, high-end polycarbonate grade, enabling us to create a unique product that stands out in the marketplace and, most important, meet our customers’ needs.”

Lexan F6000 sheet, which can be custom colored, delivers exceptional color and texture retention after thermoforming and provides durability for the demanding public rail environment. The material complies with railway fire protection requirements: UL94 V0 at 1.5 mm flame retardance according to ASTM E162, and low smoke (ASTM E662) and toxicity (BSS 7239 and SMP 800 C) performance.

Getting Aboard a New Trend in Train Windows

Lexan F6000 sheet offers a number of important advantages over traditional SMC for window frames. First, it is significantly cost-effective, even though only the periphery of the sheet is used, the center portion is recycled. Second, by streamlining the production process, the SABIC Innovative Plastics material cuts cycle times by up to 80 percent vs. SMC. Molded-in color avoids the need for secondary operations such as painting and sanding; thermoforming does not require gluing or hand work; and the material does not need a curing step – all of which were required with SMC frames.

“Our Lexan F6000 sheet is already widely used in the aircraft industry because it offers exceptional flame-retardant performance, outstanding impact strength, and a very attractive appearance,” said Lennard Markestein, global marketing director, Specialty Film & Sheet, SABIC Innovative Plastics. “These attributes, together with cost and cycle time advantages, make Lexan sheet an ideal replacement for labor-intensive SMC. Our collaboration with Plexx demonstrates how SABIC Innovative Plastics can help customers achieve a clear competitive advantage in existing market sectors by leveraging new material technologies.”

Lexan F6000 sheet also offers sustainability advantages over SMC, including reduction of volatile organic compound (VOC) emissions associated with conventional painting and curing. Because Lexan F6000 sheet is approximately 30 percent lighter than traditional SMC, window frames for railway carriages made with the material can potentially contribute to fuel conservation.

This opaque PC sheet is produced with a special, durable texture that avoids the appearance of abrasion and fingerprints, helping to maintain an attractive appearance under heavy use conditions. SABIC Innovative Plastics’ ColorXpress facility delivered an exact match to the custom red-orange tint that is the brand of Norwegian State Railways. The company also customized the flame retardance of the material to comply with fire/smoke/toxicity (FST) standards mandated in Norway.

For additional information on SABIC Innovative Plastics’ Lexan F6000 sheet products, please go to For technical product inquiries, please contact us at

About SABIC Innovative Plastics

SABIC Innovative Plastics is a leading, global supplier of engineering thermoplastics with a 75-year history of breakthrough solutions that solve its customers’ most pressing challenges. Today, SABIC Innovative Plastics is a multi-billion-dollar company with operations in more than 35 countries and approximately 9,000 employees worldwide. The company continues to lead the plastics industry with customer collaboration and continued investments in new polymer technologies, global application development, process technologies, and environmentally responsible solutions that serve diverse markets such as automotive, electronics, building & construction, transportation, and healthcare. The company’s extensive product portfolio includes thermoplastic resins, coatings, specialty compounds, film, and sheet. SABIC Innovative Plastics ( is a wholly owned subsidiary of Saudi Basic Industries Corporation (SABIC), one of the world’s top six petrochemicals manufacturers.

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SABIC Innovative Plastics
Jodi Kennedy

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