CRC corrosion inhibitor SP-400 aerosol — 10 wt oz, long-lasting moisture seal and NSF H2 protection

CRC SP-400 is a waxy aerosol corrosion inhibitor that seals bare metal surfaces against moisture and provides long-lasting indoor and outdoor protection.

SP-400 is formulated to protect machined parts, assemblies and stored equipment from rust and corrosion in challenging environments. The product lays down a firm, pliable film that resists humidity, salt spray and many industrial atmospheres. Packaged as a 10 weight-ounce aerosol, it is suitable for maintenance tasks where an easy-to-apply, removable protective coating is required and is NSF H2 registered for incidental contact in food processing locations.

How does SP-400 protect metal during storage and transport?

When sprayed onto metal, the inhibitor forms a cohesive wax-like layer that blocks moisture and corrosive vapors from contacting the substrate. That coating stays flexible and adheres to intricate shapes, helping prevent flash rust and pitting while items sit in storage or move between sites.

• Creates a continuous, moisture-resistant film
• Compatible with machined surfaces and assemblies
• Resists salt spray and humid atmospheres
• Provides up to 2 years of protection under appropriate conditions

Can I use SP-400 on equipment that will be installed in food or beverage plants?

Yes — SP-400 carries NSF H2 registration, meaning it is acceptable for use in food and beverage facilities where there is potential for incidental contact with food-processing equipment. Follow facility guidelines for application and removal prior to final food-contact assembly.

• NSF H2 registered for incidental food-contact areas
• Suitable for use in meat, poultry and beverage plants when controlled
• Easy to apply and later remove if required before final assembly

How is SP-400 applied and removed if needed?

Application is simple: spray evenly from the aerosol can at the recommended distance to achieve a thin, uniform coating. The film is designed to cling without becoming brittle, and when removal is necessary you can use compatible solvents or cleaning procedures to restore bare metal surfaces.

• Aerosol spray for quick, even coverage on complex shapes
• Leaves a firm, non-brittle, waxy protective layer
• Removable with appropriate solvents or mechanical cleaning

Will SP-400 stand up to outdoor exposure and harsh chemicals?

SP-400 is formulated for both indoor and outdoor use and performs well in environments with heat, humidity and corrosive atmospheres. While it offers strong resistance to salt spray and general chemical exposure, compatibility checks are recommended for concentrated or aggressive industrial chemicals.

• Designed for long-term outdoor and indoor protection
• Good resistance to salt spray and humid, corrosive conditions
• Test contact with strong acids, bases or solvents before prolonged exposure

Who is this for: CRC SP-400 is ideal for maintenance technicians, OEMs, marine and industrial operators, and warehouse managers who need a reliable temporary barrier against corrosion for machined parts, stored equipment, shafts and outdoor-stock materials. It suits facilities that require NSF H2 registered products for incidental food-plant use and anyone seeking an easy-to-apply aerosol inhibitor that balances protection with removability.