VCI Oils - Dry Type 400 A Ex Dry

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Quantity: 26 Liters
Sale priceRs. 15,350.00 Regular priceRs. 18,720.00

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RUSTX 400 A Ex Dry series oils contain VCI chemicals which work in contact phase as well as in the vapour phase and protect components by its dual action forming a thin lubricating film on the metal part. 

 RUSTX – 400 A Ex Dry rust preventive oil is used where dry to touch feel on the component is required without the need to wash the component before fitting. The thin layered rust preventive also reduces the amount of dust accumulation on the part as well as is an excellent rust preventive for OE supplies where assembly line use of the components is required.

 The product RUST-X 400 Series is made from Mineral Base oil used for making Engine Oil as well as the Chemicals used as Anti-Oxidants, Rust Preventives are also the same used in the manufacturing of Engine Oils but tweaked for better rust prevention etc. along with normal lubrication additives, Viscosity Index Improvers, Ash less anti-oxidants etc.

 The product chemistry and additives are all compliant with Engine Oil Additives and the product is compatible with any Engine Oil such as SAE 30, 40, 15 W 40, 20 W 40 etc. The RP oil after drying doesn’t cause any coagulation and after the drying of solvent in 400A Ex is complete, the residues are the additives which are compatible with engine oil additives. 

 It can be used for both internal and external surfaces of the engine blocks, engine heads, differential housings, gear boxes etc.

This product is made to the spec of MIL – PRF –16173 – Class 1

The variants of the product range of 400A EX Dry are

  1. 400 AEX Dry(A) - MIL – PRF – 16173 – Class – Grade 4  
  2. 400 AEX Dry(C) - MIL – PRF – 16173 – Class – Grade 2 
  3. 400 AEX Dry(E) - MIL – PRF – 16173 – Class –  Grade 1 

 All RUST-X rust preventive oils are Barium & Heavy Metal Free.


  • Lubricating oil film
  • Thixotropic properties
  • Long Term Corrosion Prevention
  • Electrostatically Sprayable
  • Easily washable with water and solvent based products
  • Excellent protection against acidic and saline environments
  • Non Sticky soft film


Physical Properties

Test Method




Amber Clear

Viscosity @ cSt @ 40°C      

ASTM D 445

2-3  cSt

Specific Gravity         

ASTM D 1298

0.78 - 0.83

Dry Film Thickness

IS 2074

1-2 microns

Flash Point (before application)

ASTM D  92


VOC Pounds per gallon



Coverage (sq m/Lt)



Pour Point             


Below -5oC




Wash ability






Engine Oil



Paint ability


Yes if concentrate

Dry Time


15-30 minutes

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