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Castrol Rustilo DW 300 X, 203L


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Castrol Rustilo DW 300 X
solvent-based water-displacing corrosion preventive
Castrol Rustilo DW 300 X is a high-performance water-displacing corrosion preventive fluid based on isoparaffinic hydrocarbon solvents. After the solvent evaporates, it leaves a very thin oily and waxy protective film, providing reliable short- and medium-term protection against corrosion.
Application:
Rustilo DW 300 X is ideal for use after electroplating processes, machining with water-miscible fluids, and aqueous cleaning operations. It provides inter-process and transportation protection. Thanks to excellent water-displacing and penetrating properties, it reaches deep into complex components and recessed areas. The product can be applied by immersion, spray, or brush – immersion is recommended for best results.
Advantages and benefits:
- Excellent water displacement: prevents corrosion caused by water entrapment under the film.
- Mild odor: isoparaffinic solvents make it operator-friendly.
- Heavy metal free: barium-free formulation simplifies disposal and ensures environmental compliance.
- Corrosion protection: offers up to 12 months indoor and 6 months outdoor (covered) protection.
- Chemical stability: resistant to acidic and alkaline contaminants, extending bath life.
- Easily removable film: can be removed using hydrocarbon or alkaline industrial cleaners.
- Mineral oil compatible: can be used in hydraulic systems if needed.
Classification according to standards:
- ISO 12185 / ASTM D4052 – density.
- ISO 3104 / ASTM D445 – kinematic viscosity.
- ISO 2719 / ASTM D93 – flash point (PMCC).
Approvals and certifications:
The product is developed in accordance with requirements of the automotive, aerospace, machinery, and precision component industries. It meets current environmental and occupational safety regulations. It does not contain hazardous substances and is compliant with environmental protection legislation.
Technical data:
Property | Unit | Method | Value |
---|---|---|---|
Appearance | - | Visual | Clear brown liquid |
Density @ 15°C | kg/m³ | ISO 12185 / ASTM D4052 | 780 |
Kinematic viscosity @ 20°C | mm²/s | ISO 3104 / ASTM D445 | 2.0 |
Flash point (PMCC) | °C | ISO 2719 / ASTM D93 | 65 |
Film type | - | Visual | Very thin, waxy |
Protective film content | % | - | 8 |
Film thickness | µm | - | 0.7 |
Coverage | m²/L | - | 105 |
Drying time @ 20°C | min | - | 60–90 |
Indoor protection | months | - | 8–12 |
Outdoor protection (under cover) | months | - | 3–6 |
Storage:
Store in tightly sealed original containers in a cool, dry area (5–45°C), away from heat sources, sunlight and moisture. Do not allow the product to freeze. Temporary cloudiness due to temperature change is reversible and does not affect product performance.
Downloadable documents:
Product data sheets