MATERIAL SAFETY DATA SHEET
VAPOR CORROSION INHIBITOR (VCI)
Product description
VCI is a Vapor Corrosion Inhibitor for corrosion protection of ferrous metals in recessed areas, interior cavities and voids.
VCI provides an extremely efficient dry method to protect metals within an enclosed space. The VCI vaporizes and adsorbs on all metal surfaces reaching all exposed areas including recessed sections
and interior cavities.
VCI, a silica-free version, is available upon request.
Features
• Does not contain silicates, phosphates, nitrites, or heavy Metals
• Provides up to 24 months of continuous protection
• Provides monomolecular inhibiting layer
• Vapor phase inhibiting action protects inaccessible and recessed surfaces
• Protected products can be shipped to customers without removing powder
• If the VCI layer is disturbed by moisture or opening the
enclosed space, the layer is replenished by continuous vapor redeposition
• Little or no surface preparation is required
• Prevents further corrosion of pre-coated and painted Surfaces
• Easy to apply
• When required powder can be removed by air gun or
water rinse
• Provides protection to ferrous metals only
• Conforms to MIL I-22110C
• LD50 ORAL: 2100mg/kg of body weight
Applications
•Tubular structures, pipes, vessels, and turbines
• Internal surfaces of compressors, turbines, engines,
tanks, boilers, and heat exchangers
• Dry lay-up of closed circuit cooling systems
• Equipment protection after hydrostatic testing
• Parts, components, and completed assemblies during
shipping and storage
• Segmental concrete bridge tendons/cables
Method oF APPLicAtion
Apply powder by dusting, fogging, or sprinkling. After
application simply cover, close or seal the interior cavity or
void.
Fogging is easily achieved with a low pressure air hose
and sandblast cup or by inverting a wet/dry vaccuum.
Large conventional sandblasting systems can also be
used.
DOSAGE
0.3-0.5 oz/ft3(300-500 g/m)
METHOD OF REMOVAL
When required, VCI in powder form can be
removed by using a low pressure air gun or by a water
rinse. Typically, if applied in aqueous form the product
does not require removal
METALS PROTECTED
• Carbon steel
• Stainless stee
• Aluminum
TYPICAL PROPERTIES
VCI
Appearance White to off-white
Ph 6.5-8 (1% aqueous)
Density 38-39 lb/ft(0.61-0.63 kg/L)
PRECAUTIONS
• Caking of powder may occur when it is exposed to
moisture and then dried. The likelihood of this is in-
creased when powder is exposed to high heat and multi-
ple wet/dry cycles. When powder gets caked, baked, and
hardened it requires removal by mechanical means or by
aggressive acid clean. To avoid caking of powder do not
over apply or unevenly disperse the dry powder.
• Powder is not soluble in hydrocarbon fluids. Rinse pow-
der from vessels before adding hydrocarbon fluids.
• Powder should be removed from area; 5-10 inches
each side of weld, before welding, or other high
temperature processing.
To provide all the costumers satisfied, HSFA® hereby guarantees the products for 12 months after the purchase
, based on the following conditions:
The products should be stored at a dark, cool and dry place.
Contents should be used immediately after the packing opened.
The guaranty would be forfeited in case of improper storage, keeping and using conditions.
