VCI Anti-Corrosive Powder Series
VPCI-609/609S
VpCITM-609 is a water-soluble Vapor phase Corrosion
Inhibiting (VpCITM) powder for wet or dry corrosion
protection of ferrous metals and aluminum.
VpCITM-609 is available as VpCITM-609S (with silica).
FEATURES
Conforms to MIL-I-22110C
Provides liquid, vapor-phase and interface
protection (above the liquid level)
Creates a monomolecular inhibiting layer on
metal surface
Provides up to 24 months of continuous protection
Does not contain nitrites, phosphates, or heavy
metals
ADVANTAGES
Vapor-phase inhibiting action protects inaccessible
and recessed surfaces
Protected products can be shipped to customers
without removing powder
If the VpCITM layer is disturbed by moisture or the
opening of an enclosed space, the layer is
replenished by continuous vapor redeposition
Little or no surface preparation is required
Prevents future corrosion of precoated and
painted surfaces
VpCITM layer typically does not need to be removed
prior to processing or use
If required, powder is easily removed by air gun or
water flush
Does not increase alkalinity
Provides economical protection for very large
applications
TOXICOLOGICAL TESTING RESULTS (Performed
by Nortech A.S. (Norway))*
Biodegradability: 100% biodegradable in marine
environment, -rapidly degradable substance (OECD**
306, BOD 28 Marine test)
Toxicity: Very low (LD-50 = 5,000 mg oral-rat)
Bioaccumulation potential: none (OECD
Guideline 117)
*Testing performed in accordance with Oslo-Paris
commission protocol
**Organization for Economic Co-Operation and Development
TYPICAL USES
Tubular structures, pipes and vessels
Internal surfaces of compressors, turbines, engines,
tanks, boilers, heat exchangers
Steam condensate lines, closed circuit heating and
cooling systems
Equipment during and after hydrostatic testing
Parts, components and completed assemblies
during shipping and storage
Additive to shot-blasting media, wet blasting
Additive to standing water
Voids, cavities and tanks
TYPICAL PROPERTIES
Appearance White crystalline powder
pH 6-7 (1% aqueous solution)
Solubility in water 15%
VpCITM-609/609S Biodegradable Powders
Corrosion Inhibiting Powders for Ferrous Metals
METALS PROTECTED
Carbon steel Mild steel
Stainless steel Other ferrous metals
Aluminum
METHOD OF APPLICATION
Apply VpCITM-609 in dry form by dusting, fogging or
sprinkling. Apply VpCITM-609 in aqueous form by spray,
brush, flush or immersion. After application, simply cover
and close or seal the interior cavity or void. Fogging is
easily achieved by using a low pressure air hose and
sandblast cup. Large, conventional sandblasting systems
can also be used.
Note: A specially designed foging unit is available for rent/
purchase from Cortec.
DOSAGE
For powder application with average environmental
conditions, use 0.3-0.5 ounce (8.5-14 grams) of VpCITM-
609 per 1 cubic foot (28 liters) of enclosed space (300-
500 g/m3). The dosage can be increased for more
severe conditions. For aqueous applications with
average environmental conditions, use 0.25% VpCITM-
609 by weight of water. The dosage can be increased
for more severe conditions. To improve the wetting of
metal surfaces, Cortec S-5 Wetting Agent can be used at
the rate of 0.5% by weight of VpCITM-609 powder.
METHOD OF REMOVAL
When required, VpCITM-609/609S in powder form can be
easily 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. If necessary, a simple
water rinse or flush will suffice.
PACKAGING AND STORAGE
VpCITM-609/609S powders are available in 5 pound
(2.3 kg), 50 pound (23 kg) and 100 pound (45 kg)
moisture barrier bags packed in fiber-lined drums. Store in
a sealed container in a dry warehouse, and avoid direct
exposure to sunlight with temperatures not exceeding
150°F (65°C). Under these conditions, shelf life is up to
24 months.
LIMITATIONS
Do not use on copper, copper-based alloys, and other soft
yellow metals.
Note: Regular VpCITM-609 has tendency to clump. For
dry fogging application use VpCITM-609S (with silica)
where acceptable.
All statements, technical information and recommendations contained
herein are based on tests Cortec
Corporation believes to be reliable, but the accuracy or
completeness thereof is not guaranteed.
Cortec Corporation warrants Cortec products will be free from
defects when shipped to customer. Cortec
Corporation's obligation under this warranty shall be limited to
replacement of product that proves to be
defective. To obtain replacement product under th
