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January 2017 • SMT Magazine 111 Pros & Cons Summary For these reasons, low-solids/no-clean flux with some small amount of rosin, or synthetic equivalent, is usually the better choice for selec- tive soldering. They have a wider process win- dow and offer better success when you have a variety of products and programs that require a range of heat or time at elevated temperatures. †Safety regarding residues is not universal across all products or applications. The allow- able residues depend on the demands of the product, its end-use environment and tested ac- cording to the design requirements. SMT Eddie Groves is the Director of the Selective Soldering Academy. Jonathan Wol is the President of Pillarhouse USA Inc. Table 5. During the recent HKPCA and IPC Show 2016 in Shenzhen, China, IPC President John Mitchell speaks with Editor Stephen Las Marias about the highlights of this year's IPC Hand Soldering World Championship, which was held in China for the first time. He discusses why it was held in China this year, and how IPC has managed to keep the event so popular and successful for such a long time. Mitchell also talks about the IPC Design Com- petition, which is now in its fourth year. Watch the video here. Real Time With...HKPCA & IPC Show 2016: IPC Hand Soldering World Championship in China CHOOSING THE CORRECT FLUX —ADVANTAGES/DISADVANTAGES