CX303 is a semi-aqueous cleaning agent carefully formulated with deionized water, high-boiling-point alcohol ethers, and volatile surfactants. It is a completely neutral cleaning agent and an excellent alternative to solvent-based cleaning agents in the electronics industry. It dissolves residual flux, solder paste, and red glue, making it suitable for cleaning flux residues from PCBs, solder paste, and red glue stencils. After cleaning, the cleaning agent evaporates from the workpiece surface, leaving it clean and rinsing unnecessary. It also offers low toxicity, low odor, a high cleaning load, and a long service life.