Why Use CRC SP 400 500ml Corrosion Inhibitor?
CRC SP 400 500ml is a premium long-term corrosion protection spray specifically developed to safeguard metal surfaces from rust, moisture, oxidation, and harsh environmental conditions. It forms a durable wax-like protective film that shields ferrous and non-ferrous metals during storage, transportation, and outdoor exposure. Widely trusted in industrial maintenance, marine applications, manufacturing plants, and engineering workshops, CRC SP 400 provides dependable protection for valuable equipment and components exposed to moisture, salt, and corrosive atmospheres.
The advanced moisture-displacing formula penetrates metal surfaces and seals out water and humidity, significantly reducing the risk of corrosion. Unlike many conventional protective coatings, CRC SP 400 is safe for use on most metals without causing staining. It is also compatible with most plastics, rubber components, and painted surfaces, making it a versatile solution for protecting mixed-material assemblies. For sensitive materials, a compatibility test is recommended before full application.
CRC SP 400 offers outstanding long-term protection and complies with the MIL-C-16173E Grade 4 salt spray corrosion resistance standard. With a coating thickness of approximately 50 microns, it provides more than 500 hours of salt spray resistance, making it suitable for demanding industrial and marine environments. The protective film can also be adjusted by thinning with petroleum solvents when different coating thicknesses are required.
This corrosion inhibitor is widely used for seasonal equipment storage, overseas shipping, outdoor machinery protection, refrigeration plants, marine equipment, steel components, automotive parts, tools, industrial machinery, and general engineering applications. It is especially effective where resistance to brine, chloride, and high humidity is required.
Key Benefits
- Long-lasting wax-based corrosion protection
- Displaces water and seals out moisture
- Prevents rust, oxidation, and salt corrosion
- Safe on most metals, plastics, rubber, and coatings
- Over 500 hours salt spray resistance at 50 µm coating
- Suitable for outdoor storage and overseas transport
- Easy aerosol application with adjustable coating thickness
- Ideal for industrial, automotive, marine, and engineering use
Application Instructions
Shake the can thoroughly before use and apply to a clean, dry surface in a well-ventilated area. Allow 60–120 minutes for the protective film to dry. For extremely humid conditions, apply CRC 3-36 first to remove moisture before applying CRC SP 400. After use, clean the spray valve by inverting the can and spraying until only propellant is released.
CRC SP 400 500ml is the ideal corrosion protection solution for professionals seeking reliable, long-lasting protection against rust, moisture, and harsh environmental conditions.
