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MÖGLINGEN, GERMANY, January 24, 2008: The game of darts is no mere pastime for serious players, for whom it is a sport with exacting rules and high standards of performance. An international supplier of darts to such players reports that it has enhanced the reliability and prolonged the performance lifetime of its products through use of a tough, stiff, carbon fiber-reinforced nylon compound from Chem Polymer.
EVOLUTION Dart-Technologie uses Beetle® 66CF4, a 20% carbon fiber-filled nylon 66 compound, to injection mold 34 and 44 mm (1.3 and 1.7 in.) shafts that are lighter than widely used metal counterparts and exhibit greater resistance to breakage than conventional thermoplastic shafts.
"The perpendicular forces generated in the dart as it strikes the target are great enough to pose a real challenge for other all-plastic shafts," noted Roland Kühn, owner of EVOLUTION, "but the outstanding tensile and flexural properties of the Beetle compound make our new shafts better capable of withstanding the considerable stresses imposed on them in repeated use by intensely competitive dart players."
There are four components in a dart. The most apparent to non-players are the tip, the barrel (gripped by the player), and the flight (fins that stabilize the dart as it moves through the air). The fourth component is the small but critical shaft, which connects the barrel and the flight. The shaft is threaded at one end and screws into the barrel; the flight is affixed to the shaft by rings or other fasteners. Different lengths are available to vary dart performance. The shaft can be made of metal, plastic, or a combination of plastic and a threaded metal segment.
"The high stiffness imparted by the carbon fiber reinforcement in the Beetle compound has enabled EVOLUTION to completely replace metal in the shaft, saving weight while providing the dimensional stability required for an accurate and secure connection between the flight and the barrel," said Dr. Inge Würtz, Chem Polymer sales manager. "At the same time, the carbon fibers provide greater flexibility than comparably filled glass fiber composites, which are more brittle and less capable of withstanding repeated stresses without breakage."
EVOLUTION began using Beetle 66CF4 only a few months ago. "Although we have offered our carbon fiber reinforced shafts for only a short time, they are already very much in demand by our customers," said Mr. Kühn. "The high quality of the Beetle material is a perfect fit with our range of darts, which are widely regarded by players as first-class products."
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EVOLUTION Dart-Technologie is located at Daimlerstrasse 16, 71696 Möglingen, Germany. Tel: 49-7141-48-45-35. Fax: 49-7141-48-47-11. Email: evolution-dart@t-online.de. Visit www.evo-darts.com.
CHEM POLYMER, a business of TEKNOR APEX COMPANY, is an international supplier of engineering thermoplastics for the automotive, appliance, electrical/electronics, and other industries. It produces reinforced, filled, and specially modified compounds of nylon 6 and 66 (Beetle® and Chemlon®), acetal copolymer (Formax®), PBT (Durlex®), PET, and specialty nylons under the Beetle® brand. Founded in 1965 and acquired by Teknor Apex in 2004, Chem Polymer operates plants in the United Kingdom and the U.S.A. Its UK office is at Tat Bank Road, Oldbury, West Midlands B69 4NH, UK. Tel: 44-121-665-2105. Fax: 44-121-544-5530. Email: etpsales@chempolymer.co.uk. In the U.S.A., Chem Polymer has offices at 2443 Rockfill Road, Ft. Myers, FL 33911 USA. Tel: 1-239-337-0400. Fax: 1-239-337-4461. Email: chemlon@chempolymer.com . Visit the web site: www.teknorapex.com.
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