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June 23, 2008 - Updated
June 23, 2008 - Originally Posted

What is Jell Flux?

Lately I've seen a lot of products described as "JEL-FLUX." How does it differ from traditional paste flux? What are its advantages and disadvantages and what are the chemical components that makes it a jell?

J. H.

Expert Panel Responses

Looks to me that "jel-flux" may be a trade name for high viscosity flux used in the manufacture of jewelry. GEL-FLUX is a generic description used to describe the high viscosity fluxes used for rework operations for; QFPs, PLCC and Array (BGA) components.

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Edward Zamborsky
Regional Sales Manager
OK International Inc.
Ed Zamborsky is a Regional Sales & Technical Support Manager for Thermaltronics, located in New York. His position requires frequent customer visits throughout North America and the Caribbean and his position encompasses not only sales but the role of trainer and master applications engineer for all of Thermaltronics products. His expertise includes such specialties as hand soldering, convection and conduction reflow techniques, array rework, fluid dispensing equipment, and fume extraction. Ed has authored many articles and has presented many papers on topics such as; Low Volume SMT Assembly, Solder Fume Extraction, SMT Rework, BGA Rework, Lead-Free Hand Soldering, High Thermal Demand Hand Soldering, Lead Free Visual Inspection and Lead Free Array Rework.
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