Bt solders manufactures ws-24 solvent cleaners. These solvent cleaners are a blend of polar and non-polar solvents for cold cleaning utilising ultrasonic agitations and wave or bottom brush equipment. The non-polar component in solvent cleaners remove non-ionic solids like soldering oils and rosin flux residues where polar components dissolving ionic contaminants like flux activators left on printed circuit boards can cause current leakage and corrosion under humid environmental conditions. The solvent cleaners are available with a stabilized against thermal and chemical breakdown and boils at 46°c temperature. The cleaner is non-flammable and non-combustible and therefore extremely safe to use.