The product has a wide material compatibility window on printed circuit boards, components, labels and metallic surfaces.ĪQUANOX® A4651US has proven compatible with all materials commonly used in electronic assembly manufacturing and cleaning processes. The product is low in odor and contains no hazardous materials. The features engineered into A4651US make for a highly effective ultrasonic cleaning product. Functional additives are added to protect metallic surfaces from chemical attack, surface tension reduction to improve wetting and penetration under low gap components, and reduce foam propagation. These effects improve cleaning performance on highly dense assemblies.ĪQUANOX® A4651US is engineered with a mixture of oxygenated and polar organic reactive solvents. The combined effects allows for both chemical and mechanical energies needed to remove residues under bottom termination components. Sweep frequency changes the speed and magnitude of energy by allowing energy bursts along with soak periods. As components decrease in size, higher frequency levels provide milder scrubbing intensity and less potential for part damage. Selecting the proper frequency for a particular application is critical. Wash time is a function of wash temperature and ultrasonic cavitation. For most applications, A4651US is run at dilution rates in water of 15-30% concentration. Dependent on the flux type, AQUANOX® A4651US can be used “as is” or diluted. The low surface tension and recommended operating temperature range (50-65☌) creates lower ultrasonic pressure amplitudes needed to achieve uniform cavitation.ĪQUANOX® A4651US is effective at cleaning most lead-free and tin-lead no-clean, rosin-based, and water-soluble reflowed flux residues on production assemblies. The engineered cleaning solution creates a strong affinity for post soldering flux residues using a combination of water loving and oil loving properties. About the Low pH Ultrasonic Immersion PCB Cleaner – AQUANOX A4651US Brilliant solder joints with no sump side additives and cleans exceptionally well on the latest flux formulations in electronic assemblies.ĪQUANOX® A4651US is a batch cleaning product specifically designed to remove flux residues from printed circuit assemblies while reducing the cavitation threshold.
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