CQ4LF-xS No-Clean Liquid Flux Chip Quik CQ4LF-xS No-Clean Liquid Flux features non-flammable and excellent wetting. These liquid flux leave no residue behind and are water-based. The CQ4LF-xS no-clean liquid flux are VOC, halide, and rosin-free and can be used for both lead and lead-free applications. These liquid flux are easily cleaned with Isopropyl Alcohol (IPA). The CQ4LF-xS no-clean liquid flux operate from 20°C to 25°C temperature range. These liquid flux are ideal for all rework, solder, and de-solder applications.