PHOSPHATE COATING
Phosphate coatings appear light gray to black depending on the process used.
Phosphate is a excellent base for paint, and when combined with a class 2 oil coating, it has good corrosion resistance.
Specification |
Comments |
|---|---|
| DOD-P-16232 F | |
| Type Z | Zinc Phosphate base. |
| Class 1 | Supplementary preservative treatment or coating, as specified. |
| Class 2 | Supplementary treatment with lubricating oil conforming to MIL-L-3150. |
| Class 3 | No supplementary treatment. |
| Class 4 | Chemically converted (may be dyed to color as specified). With no supplementary coating, or supplementary coating as specified. |
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