Types of chemical conversion coatings

Basic Types of phosphate coating:

  1. Iron phosphating – 30 – 100 mg/sq.ft
  2. Zinc phosphating
    • Light – 100 – 400 mg/sq.ft
    • Medium – 450 – 1000 mg/sq.ft
    • Heavy – 1000 – 3000 mg/sq.ft
  3. Manganese phosphating – 1000 – 3000 mg/sq.ft

New trends in chemical conversion coatings:

  1. Low zinc, managanges phosphating
  2. Trication phosphating
  3. Electrophosphating
  4. Calcium modified phosphating
  5. Insitu phosphatizing
  6. Galvanic coupled phosphating
  7. Nanoceramic coating

Technical know-hows are available on request to email: eramanath@gmail.com

 

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