Rust and Scale Remover


CorroSoak is designed for the safe removal of rust, scale and tarnish from most metal objects. It has numerous applications in the automotive, marine, construction, mining, and food processing industries, as well as many areas around the home.

CorroSoak is biodegradable, water-based and contains no solvents, phosphates, mineral acids or caustic ingredients. Approved by the Dept. of Primary Industry and Energy for use in export registered meat establishments.


CorroSoak can be used as a radiator flushing compound to remove rust and scale buildup from the cooling system. Drain old coolant from the cooling system (including heater) and refill with water. Add 500 mls CorroSoak to the radiator and run the engine for 15 to 20 minutes. Drain and thoroughly flush the system with water before filling with coolant such as Cool Max or Cool Plus coolants.

To conserve product, any loose rust or scale deposits should first be removed using a wire brush.  All traces of oil and grease should be cleaned off with detergent. CorroSoak is simply diluted in hot or cold water at the rate of 1 litre concentrate to 5 litres water, and the metal object immersed for between 3 – 24 hours.  Hot water works much more quickly than cold water.  The object is then removed, rinsed well and dried.

The diluted CorroSoak may be re-used many times.

Not suitable for zinc galvanized surfaces.

Use with caution on magnesium alloys, or where solder is present.


CorroSoak is not classified as hazardous.  Read Material Safety Data Sheet before use.  Avoid contact with skin and eyes and avoid breathing vapours.

The wearing of rubber gloves is recommended when handling this product.