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Anodize
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Phosphates
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Zinc, Manganese & Iron Phosphate Coatings

Phosphates PHOSPHATE COATINGS

Phosphate coatings consist of crystalline, non-reflective, water insoluble metal phosphates that are very adherent to the base metal. Phosphate coatings are measured by coating weights such as g/m2 or mg/ft2. They can be associated in three main categories:

ZINC PHOSPHATE
  • Heavy zinc phosphate that has the ability to retain rust inhibiting oils, preservatives, or other specified finishes. MIL-DTL-16232, Type Z
  • Lighter zinc phosphate has a smoother crystal structure and is normally not oiled as it is used as a base for paint.
  • DOD-DTL-16232, Type Z
  • TT-C-490, Various Types and Methods
  • DOD-P-50002, Type Z
MANGANESE PHOSPHATE
  • Chosen for wear resistance and the ability to retain oils.
  • DOD-DTL-16232, Type M
  • DOD-P-50002, Type M
IRON PHOSPHATES & PROPRIETARIES
  • Utilized as a paint or powder coating base.
  • There are numerous proprietary phosphate baths within each group that meet specific part requirements.

Peninsula Metal Finishing, Inc. currently offers Zinc and Manganese Phosphates

Peninsula Metal Finishing, Inc.In Consideration of the Environment