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Corrosion Preventative Oil Base Coat

Long-term CPT Corrosion Protection

in a Biodegradable Oil

Corrosion Proofer


CPT-200 product is a time proven corrosion preventative for use as an oil additive and/or long-term corrosion preventative oil based coating. This product is excellent for mothballing, operational use, shipping or storage of parts and equipment. As an additive, in small percentages, it has a minimal effect on viscosities. It has extreme resistance to salt water, salt spray and humidity making CPT-200 particularly useful in marine, industrial, commercial, operational and offshore corrosion preventative applications. This product provides optimal long-term corrosion protection, for ferrous and non-ferrous metals exposed to harsh environments.

  • Dry Film Thickness mil: 1-2 mil (25-50 Ám)
  • VOC g/l (lbs/gal): 30 (.25)
  • Solids %: 97
  • Coverage ft 2 /gal (m 2 /l): 800 (19.6)
  • Self-healing
  • Extends tool and equipment life for metalworking operations
  • Excellent outdoor protection
  • Excellent oil additive
  • Dilutable with oil
  • Meets MIL-C-16173D (Grade 2), QPL product
  • NSN 8030-00-244-1297


  1. Allows protected metal surfaces to be easily handled.
  2. No surface preparation, as SEI Corrosion Proof Oil Base will adhere to the pre-rusted, oily and dirty surfaces.
  3. A thixotropic liquid, self-healing, resistant to sag, run-off, and flow.
  4. Excellent U.V. resistance, providing optimal outdoor protection without cracking or chipping of protective films after prolonged exposures to sunlight.
  5. Universal protection for ferrous and non-ferrous metals and alloys.
  6. The non-conductive film with high resistivity and insulating properties effectively prevents galvanic corrosion between dissimilar metals.
  7. Has moisture-displacing characteristics and penetrating film characteristics
  8. Thermally stable over a broad range of temperature.
  9. Applicable to the following specifications: MIL-C-0083933A and MIL-C-16173D
  10. Easy removable with mild solvents.


Appearance: Oil Base tan liquid

Specific Gravity: 0.92 at 25°C

Non-volatile Content: 94-98%

Weight per Gallon: 7.7-8.2 lb/gal (0.92-0.98 kg/l)

Carbon Steel (1010)
Humidity D-1748
1 mil (25 microns)
7000+ hr.
3000+ hr.
Salt Spray B-117
1 mil (25 microns)
900+ hr.
1200+ hr.


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


Protection of structural plant and equipment

Mothballing refineries, power plants, and chemical plants External surfaces of large machines, pipes, pumps, heat exchangers, etc - during standby, field storage, or any operational equipment.

Shipping & Storage:

Covered or uncovered packages shipped overseas and/or during extended on-site storage


Steels for fabrication, structural steel, metal forgings or storage of metals and in field use

Concrete reinforcing bars, aluminum or steel sidings joints, profiles, bridges, structures, casings and steel roof.

Marine & Offshore:

External and internal surfaces of offshore platforms and equipment. Ballast tanks, storage, and process vessels. Castings, pumps, valves, and compressors, heat exchangers, boilers, turbines and transformers. Wire rope, cable, wire, and chains.

Corrosion Prevention Products Brochure

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