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COLTEC UNIT DEVELOPS MATERIAL TO CONTROL ZEBRA MUSSELS

 COLTEC UNIT DEVELOPS MATERIAL TO CONTROL ZEBRA MUSSELS
 NEW YORK, Dec. 5 /PRNewswire/ -- Garlock Valves and Industrial


Plastics (V&IP), a unit of Coltec Industries Inc, has developed Z-GARD, a material that prevents zebra mussels from fouling the intakes of power plants and drinking water facilities, it was announced today by Coltec Industries.
 Zebra mussels (Dreissena polymorpha) are tiny mollusks that form huge colonies and clog water intake pipes, valves and trash gates. They have caused extensive damage and have had to be removed mechanically, a costly and time-consuming process. Zebra mussels range across the Great Lakes and east to the Hudson River.
 Garlock V&IP has filed for a patent for Z-GARD, which can be configured into valves, pipes and other surfaces that are antagonistic to zebra mussels, preventing them from building up and becoming a hazard. Unlike previous efforts to control zebra mussels, Z-GARD does not appear to pose a threat to other forms of aquatic life and drinking water. Z-GARD also does not increase the corrosiveness of the environment surrounding pipes, valves and other areas exposed to water.
 Z-GARD is created by adding certain molluscicidal chemicals to ultra-high molecular weight polyethylene (UHMWPE), a product well known in the power industry for its outstanding abrasion resistance and relative chemical inertness.
 Garlock V&IP, based in Camden, N.J., manufactures and markets polytetrafluoroethylene-lined and UHMWPE-lined butterfly and plug valves and components.
 Coltec Industries Inc is a New York-based manufacturing company with 1990 revenues of $1.49 billion serving aerospace, automotive and other industrial markets.
 -0- 12/5/91
 /CONTACT: Michael Dunn of Coltec, 212-940-0523/ CO: Coltec Industries; Garlock Valves and Industrial Plastics ST: New York, New Jersey IN: SU:


GK-SH -- NY006 -- 9483 12/05/91 08:36 EST
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Date:Dec 5, 1991
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