AC-90 Displaces water, helps start damp engines, penetrates rust, protects from corrosion, lubricates and stops squeaks. Silicone free, electrically non-conductive and can be used on or near electrical components, motor circuits etc, without affecting insulation or causing short circuits. Aerosols that use no CFCs and are ozone friendly or in screw top metal cans and drums. Removes dirt & grime including adhesives, chewing gum,crayon marks and can be used on doors & hinges,curtain tracks,castors and drawer runners.Also descales taps & showers. AC90 can be used in the home,garage,workshop & factory Does not contain kerosene, paraffin or naphtha. Size: 250ml, 425ml, 500ml, 5ltr and 25ltr.