December 2005
Asymtek’s New Viscosity Control System for Consistent and Stable Conformal Coating Results
Carlsbad , CA – Asymtek’s new Viscosity Control System™ provides continuous viscosity management to maintain consistent delivery of temperature-responsive conformal coating fluids. The new Viscosity Control System™ combines a heated, recirculating fluid circuit with close-range temperature monitoring to keep the coating process consistent and stable. Solvent usage may be reduced, resulting in less Volatile Organic Compound (VOC) emissions. The Viscosity Control System is an option for the Asymtek Century® Series Conformal Coating platform.
Certain factors like ambient temperature changes and different material lots can cause viscosity fluctuations, which affect the performance and consistency of coatings applied to printed circuit board assemblies. With Asymtek’s Viscosity Control System, fluid delivery is monitored closely and maintained at set parameters. When a user loads a new batch of fluid in a coating system, the Viscosity Control System brings the fluid up to optimal coating temperature. Fluid is continuously recirculated past strategically located temperature probes that control the temperature to within 1 degree Celsius. Safety is designed into the system by using components that meet the most stringent standards for use around volatile materials.
Asymtek® , a world leader in automated fluid dispensing and innovator of jetting technology, designs and manufactures a full line of dispensing and conformal coating systems for semiconductor package and printed circuit board assembly as well as automotive, medical, aerospace, disk drive, flat panel display, optoelectronic, appliance and other precision industrial manufacturing applications. Asymtek products deliver a wide variety of fluids, including glues, epoxies, solder pastes, coatings and gasketing materials.
Founded in 1983 and acquired as a subsidiary of Nordson Corporation (NASDAQ symbol NDSN) in August 1996, Asymtek is an ISO 9001:2000 certified company. Asymtek has received numerous awards including Intel’s 2003 and 2004 prestigious Supplier Continuous Quality Improvement award. For more information, visit www.asymtek.com.
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