Description
Castrol Rustilo Aqua™ 30 (previously called Aquasafe™ 30) is a new technology, high performance, environmentally
friendly water-based corrosion preventive formulated on a selected blend of corrosion inhibitors. Rustilo Aqua™ 30
deposits an almost imperceptible light, soft greasy film, which is usually just provided by solvent-based products.
Rustilo Aqua™ 30 does not contain heavy metals, such as barium.
Application
Rustilo Aqua™ 30 is an aqueous temporary corrosion preventive providing short to medium term protection on metal
parts and components during intermediate storage or transportation.
The product is intended for dip, low pressure spray and/or flood applications.
Conditions of Use
Concentration range: as supplied ('ready-to-use')
Temperature range: 20 - 30°C
Advantages
Water-based corrosion preventive - environmentally friendly, provides a safer working environment.
Solvent-free formulation:
- Eliminates fire hazard.
- Potential for reduced insurance premiums.
- Not regulated by VOC legislation.
- Non-ozone depleting.
- Assists in achieving ISO 14001.
Deposits very thin protective film.
Safe and easy handling of components.
Provides excellent ferrous corrosion protection.
Low foam - suitable for dip, flood and low pressure spray applications.
Short drying time - minimum impact on process/production times.
If required protective films of Rustilo Aqua™ 30 can be removed by using a petroleum solvent or alkaline process
cleaner, all available from Castrol..
User Advice
Before treatment with Rustilo Aqua™ 30 the parts surface should be free of contaminants, such as oils, greases and
particles to ensure its best performance.
A very important aspect of water-based corrosion preventives is the drying time; once the product has been applied onto
the components. It must be allowed to dry (> 30 minutes) prior to the packaging of treated components in order to
ensure maximum corrosion protection.
Using supportive drying equipment, e.g. a hot air blower, could further reduce drying time.
Regularly check the pH of the product and ensure that the pH is maintained between 8.7 - 9.5.
Once the product is introduced into a holding tank pending application, it is advised to keep this tank covered to reduce
evaporation losses and reduction of deposit formations onto the application equipment. The application tank should
ideally receive agitation or stirring to maintain product dispersion.
Concentration of the film forming content of Rustilo Aqua™ 30 is determined by the non-volatile residues (total solids)
In order to minimise the risk of any stability or corrosion issues caused by increasing levels of water hardness and
corrosive inorganic salts (i.e. chloride) it is recommended to top-up evaporation losses with deionised water.