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VCI Paint Primer


 


Applications for VCI Paint Primer


  • TEST PROTOCOL FOR APPLICATION OF SURTREAT EPOXY PRIMER PLUS VCI

    SHIP YARD

    SELECTION OF TEST SURFACES AND PREPARATION

    •          Rusted steel surface exposed to salt corrosive environment with recessed areas such as plate overlaps, rivet and nut and bolt fixtures. 

    •          Corroded steel surface prepared to white steel with abraded surface.

    •          Rinse corroded surface to remove salt and wire brush to remove lose rust.

    •          Leave rusted surface as found for application of primer

     

    APPLICATION OF EPOXY PRIMERS

    •          Apply 2 part polyamide epoxy primer conforming to MIL-DTL-24441 Formula 150      TYPE III in one coat at 3ml  dry film to each test surface as selected.

    •          Apply 2 part Surtreat Epoxy Primer Plus VCI to each surface in one coat at 3 mil dry film.

    •          May apply one coat of finish top coat if desired on part of the primer coated surfaces.  Leave part of surfaces with primer only for performance observation.

     

    SUPPLY OF SURTREAT EPOXY PRIMER PLUS VCI

    • Supplied as 2 part kits in 2 gallon or less sizes.  Meets all technical specifications of MIL-DTL-24441 Formula 150 Type III except that Surtreat vapor phase corrosion inhibitor (VCI) added to Part A in amount that the final dry film contain 2.5Wt.% of VCI agent.

     

    PERFORMANCE OBSERVATION

    • Identify surface application areas for future examination.  Laboratory test using salt fog chamber exposure for 500 hours gave significant corrosion on rusted and white metal surface with epoxy primer and limited to no corrosion with Surtreat Epoxy Primer Plus VCI.

     

  • COMPARISON

 

 

Documentation

   
   

 

 

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