VpCI®-369 Open Atmosphere Removable Coating


VpCI®-369 is an oil-based temporary coating that provides extreme corrosion protection in aggressive environments and is one of our most-popular wet film corrosion inhibitors and lubricants. Can be matched to some custom colors.


Commercial equivalent to MIL – PRF – 16173E (Grades 2), NSN 8030-00-244-1295, 244-1297, 244-1298, 01-149-1731.




VpCI®-369 is available in 5 gallon (19 L) pails, 55 gallon (208 L) metal drums, liquid totes, and bulk.
VpCI®-369 is also available in 11 oz. (312 g) aerosol cans. To ensure best product performance, store in original packaging, indoors, and out of direct sunlight at 40-100 °F (4-38 °C).
Shelf life: 2 years


Surface Preparation
Substrate should be free of grease, oil, dirt, fingerprints, drawing compounds, rust inhibitors (except Cortec® approved), or any other surface contamination that could affect adhesion. Cortec® recommends a minimum of a SSPC-SP1 over painted surfaces. For bare metal applications, Cortec® recommends a NACE #3/SSPC-SP6. Consult Cortec® Technical Service and/or test system adhesion prior to full scale application.

Power agitate to a uniform consistency using a “squirrel cage” type mixer, hand-held drill mixer, or other equivalent method. VpCI®-369 can be applied by spray, roll, brush, or dip.

Typical Equipment Setups

HVLP / Conventional Spray
• Tip 0.02”-0.11” (0.5-2.8 mm) dependent upon pressures and viscosity
• Air Pressure 45-55 psi
• Fluid Pressure 10 psi
• Fluid hose should be ⅜” (0.95 cm) I.D. with a maximum length of 50 feet (15.2 m). ¼” (0.64 cm) I.D. fluid hose can be used, but pressures may need to be adjusted. Pot should always have dual regulation and be kept at same elevation as spray gun.

Air Assisted Airless / Airless

• Tip 0.015”-0.035” (0.38-0.89 mm) dependent upon pressures and viscosity
• Pressure 1800-2500 psi
• Hose should be ⅜” (0.95 cm) I.D. minimum, but a ¼” (0.64 cm) I.D. whip end section may be used for ease of application. A maximum length of 100 feet (30.5 m) is suggested.



Clean tools/equipment immediately after use with Butyl Acetate when coating is still wet. For removal of VpCI®-369 applied to a metal surface, use a VpCI®-41x Series alkaline cleaner/degreaser. Follow mfg’s safety recommendations when using any solvent.


Volume Solids 99.20%
Gloss (ASTM D532)
VOCs (ASTM D3960) 0.21 lb/gal (25 g/L)


10,000-45,000 cPs @ 77 °F (25 °C),

50-70 sec  #3 Zahn Cup #3, 6000 cPs @

104 °F (40 °C)

Pencil Hardness  (ASTM   D3363)
Spreading Rate 1588 sq.ft/gal @ 1.0 mils DFT

(38.9 sq.m/L @ 25 μm)

Weight per Gallon 7.5-8.4 lbs/gal (0.9-1kg/L)
Flash Point 248 °F (120 °C)
Recommended    DFT 1.0-3.0 mils (25-75 μm)
Recommended WFT 1.0-3.0 mils (25-75 μm)
Dry to Touch
Dry to Handle
Recoat Time
Force Dry
Full Cure
Salt Spray (ASTM B117) 500 saat
Humidity (ASTM D1748) 4000 saat
Adhesion (ASTM D3359)
Flexibility (ASTM D522) ½” mandrel (1.27 cm)

All tests performed after a 7 day cure at ambient temperature