Cortec VpCI 369 Liquid Concentrate


VpCI-369 is our best inhibitor for use as an oil additive and/ or temporary coating. The protective film is self-healing and moisture-displacing, providing superior protection against aggressive environments.


VpCI-369 is also excellent when used as an oil additive for mothballing, shipping, or storage of parts and equipment. In small percentages, VpCI-369 has a minimal effect on viscosities.


VpCI-369 is available prediluted with mineral spirits at the ratio 1:1 as VpCI-369 H, which is recommended for spray can applications


• Self-healing
• Excellent lubricity
• Extends tool life for metalworking operations
• Excellent outdoor protection
• Excellent oil additive
• Dilutable with oil
• Meets MIL-PRF-16173E (Grade 2)
• NSN 8030-00-244-1295
• NSN 8030-00-244-1297
• NSN 8030-00-244-1298
• NSN 8030-01-149-1731



• Wire rope
• Electrical connections/wiring
• Sheltered coating
• Gear protectant/lubricant
• Long-term (5+ years) equipment lay-up
• Stamping oil additive
• Drawing oil additive
• Cylinders
• Working/moving parts

Product Details

Product Code(s) Packing Size
VPCI-369-5 Cortec VpCI 369 Liquid for Outdoor Protection (5 gal. pail)
VPCI-369-55 Cortec VpCI 369 Liquid for Outdoor Protection (55 gal. drum)


Metals Protected • Silver
• Cast Iron
• Stainless Steel
• Copper
• Magnesium
• Aluminum
• Carbon Steel
Typical Properties  
Appearance Light beige/tan viscous liquid
Film Type Film Type Oily
Flash Point 233˚F (112˚C)
Shelf Life Shelf Life
Non-volatile Content 95-99%
Theoretical Spread Rate 753-1506 ft2/gal @ 1-2 mils / (18.8-37.6 m2/l @ 25-50 microns)
Viscosity  Viscosity 10,000-45,000 cps
Weight per Gallon Weight per Gallon 7.7-8.4 lb/gal / (0.92-1.01 kg/l)
Temperature Resistance -108°F to 500°F (Fully Cured) (-78°C to 260°C)

Additional Information

Method of Application
Product should be mixed thoroughly and uniform prior to use. Product can be applied by spray, brush, roll, or dip. Normal DFT is 1-3 mils (25-75 microns). Apply VpCI-369 in a well-ventilated area.

Method of Removal
For cleanup of tools and overspray, use alkaline cleaners
such as Cortec VpCI-414 or mineral spirits.

VpCI-369 can be removed if applied in splash zones, heavy rains, or similar conditions. Parts protected with VpCI-369 should be sheltered for best results.