Kyzen announces that it will showcase its AQUANOX A4639 Electronic Assembly Aqueous Solution in Booth #1F02 at NEPCON China 2013, scheduled to take place April 23-25, 2013 at the Shanghai World EXPO Exhibition Convention Center. The easy-to-control A4639 protects solder joints from chemical attacks and is effective on B-side misprints. The biodegradable aqueous solution does not contain CFCs or HAPs. AQUANOX A4639 is an engineered aqueous cleaning fluid that has proven effective on a wide range of soils including the latest lead-free, no-clean formulations at low operating temperatures and concentrations. A4639 was designed for use in batch spray systems and provides exceptional cleaning results and protection of metallic surfaces with minimal monitoring and no sump-side additives. AQUANOX A4639 is available in five, 25 and 200 liter (one, five and 55 gallon) containers. In addition to AQUANOX A4639, Kyzen offers a full line of precision cleaning chemistries to address a vast range of manufacturing cleaning challenges. Kyzen and AQUANOX are registered trademarks in the United States and other countries.