GENERAL DESCRIPTION

Long-term outdoor and indoor corrosion inhibitor.
CRC SP 400 II is a long-term, outdoor and indoor corrosion inhibitor for machined surfaces
and assemblies subjected to long periods of storage or adverse shipping conditions. The
amber, dry, waxy film never becomes brittle and is highly resistant to humidity and severe
corrosive atmospheres.

FEATURES

• Long-term protection (up to 2 years outdoors) for all metals during shipment or extended
storage.
• Waxy film seals out moisture effectively. Highly resistant to humidity and salt spray.
• Can be removed or diluted, for film thickness variation, with petroleum solvents.
• Aerosols use hydrocarbon propellant for controlled application and film thickness.



Description

DIRECTIONS

• Shake aerosol can well before use. Stir or mix bulk product to break its paraffin structure
before dipping or brushing applications.
• Mask area not to be treated. If necessary, remove by solvent cleaners (CRC Fast Dry
Degreaser, CRC Industrial Degreaser…).
• Film thickness may be adjusted by thinning with petroleum solvents, but corrosion
resistance varies with film thickness (see typical properties).
• For applications in wet or very humid conditions, CRC 3-36 should be applied first for
complete moisture displacement. Allow then 2 to 4 hours for solvent evaporation before SP
400 is applied.
• When finished spraying, clean aerosol valve by turning can upside down and pressing
actuator until only propellant escapes.
• Do not use on energized equipment. Use in well ventilated areas.