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Phosphate coating procedure -- NuKoat Series of Products

bullet
For best results with Iron Phosphating these parameters should be followed for 35-50 mg/ft2 coating weights.
bullet Spray (superior coating and cleaning over immersion)
bullet Minimum Pressure: 300 PSI at >3 GPM
bullet Temperature: 120 -140 F
bullet Time: 60-180 Seconds (coating weights will increase with longer contact times).

For a downloadable pdf file click here

Start from the bottom and work vertically up surface for large pieces.  Ensure complete impingement, under pressure, of NuKoat for a minimum of 60 seconds on entire surface.  DO NOT ALLOW the surface to dry down during processing.

Guidelines for achieving desired coating weights: 

  1. Spray coating weights 25 - 50 mg/ ft2
    1. Temperature: 120 - 140 F
    2. Concentration: 2-4 % By volume
    3. Time:  1 - 2 minutes
       
bullet Laboratory Q-Panel Testing on mild 1010 steel:  120 F @ 2 % b.v., 90 sec will give coating weights of 30 - 45 mg/ft2

NOTES:

bullet On cast iron coating weights will be slightly lower than mild steel. Use 130 - 140 F to get 30 - 45 mg/ft2.
bullet In cold weather or on cold metal surface, especially large pieces metal should be heated or processing could require an extra 30-60 seconds.

Direct contact time is critical along with prior removal of surface grease and oils.  NuKut 33 MF is designed to provide adequate cleaning of mildly soiled work pieces.

  1. Immersion with light agitation:
    1. mild steel (1010) - 120 F, @ 2 % b.v., 2 - 3 minutes, 35 - 50mg/sq. ft.

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Rust and Corrosion Preventative Products:

NuKoat Rust Preventatives

NuKoat Rust Preventatives

NuKoat

NOTES: 
(1) Molybdate-based Iron Phosphate conversion coating for aluminum and aluminum alloys as an environmentally benign replacement of chromate-based conversion coatings. The molybdate based iron phosphate conversion coating can be applied by dipping, painting, or spraying, with short treatment times at low temperatures, and is compatible with existing cleaning and pretreatment procedures.
    Some Municipalities are now requiring products that are molybdate free...NuKoat 55 and 55T (also 53MF and 33 MF)  are iron phosphate conversion coatings that meet OSHA and EPA regulations for environmentally friendliness and worker safety.
 
(2) Want to determine your own coating weights (iron or zinc phosphate).  FEDERAL SPECIFICATION:  TT-C-490E: CHEMICAL CONVERSION COATINGS AND PRETREATMENTS FOR FERROUS SURFACES (BASE FOR ORGANIC COATINGS)

    GOVERNMENT/SCIENCE/INDUSTRIAL APPLICATIONS FOR CONVERSION COATINGS:
Iron Phosphate Fremont oakite chemetall gmbh gardbond pre paint Navy (Std Missile, Phalanx, RAM, Tomahawk)
Iron Phosphate Fremont oakite chemetall gmbh gardbond pre paint Air Force (ACM, AMRAAM)
Iron Phosphate Fremont oakite chemetall gmbh gardbond pre paint NASA
Iron Phosphate Fremont oakite chemetall gmbh gardbond pre paint DOD Prime Contractors

Industrial Applications:

Iron Phosphate Fremont oakite chemetall gmbh gardbond pre paint Aerospace
Iron Phosphate Fremont oakite chemetall gmbh gardbond pre paint Boilers
Iron Phosphate Fremont oakite chemetall gmbh gardbond pre paint Air conditioners
Iron Phosphate Fremont oakite chemetall gmbh gardbond pre paint Fusion rollers (copiers, laser printers, etc)
Iron Phosphate Fremont oakite chemetall gmbh gardbond pre paint Aluminum construction materials
Iron Phosphate Fremont oakite chemetall gmbh gardbond pre paint Pre-paint metal (Iron, cast iron, aluminum, steel)
Iron Phosphate Fremont oakite chemetall gmbh gardbond pre paint Furniture, household appliances, pre-paint metal fabrication
Iron Phosphate Fremont oakite chemetall gmbh gardbond pre paint Iron Phosphate conversion coating paint and powder coating lines
Iron Phosphate Fremont oakite chemetall gmbh gardbond pre paint Road & Traffic Signs and Posts (Speed limit signage, Street Signs)
Iron Phosphate Fremont oakite chemetall gmbh gardbond pre paint Vehicle License Plates
Iron Phosphate Fremont oakite chemetall gmbh gardbond pre paint Wrought Iron Railings
Iron Phosphate Fremont oakite chemetall gmbh gardbond pre paint Fences
Iron Phosphate Fremont oakite chemetall gmbh gardbond pre paint Coil Coating

 
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