1. P LATING OF A EROSPACE M ATERIALS

4. Reason for use: Good corrosion resistance and preferred in Aerospace over Zinc Finish/Color: Typical colors include Yellow (common in Aerospace), Iridescent, Amber, Black, or Olive Drab (Military applications) Specs: QQ-P-416 Types: 1 – No supplemental treatment 2 – Supplemental chromate treatment (Most common) 3 – Supplemental phosphate treatment Class (Thickness): 1 –.0005 min 2 –.0003 min 3 –.0002 min

5. Reason for use: Good corrosion resistance and used if environmental restrictions prevent use of Cadmium Finish/Color: Dull or Bright Specs: QQ-N-290 Class 1 (Common for corrosion protection): Grade A thru D: Not common Grade E – 0.0006" min Grade F – 0.0004" min Grade G – 0.0002" min Class 2:.002 min (For Engineering applications only)

7. Reason for use: Good corrosion resistance and heavy wear resistant Finish/Color: Black (Common in Aerospace), Clear, and a variety of other colors used for cosmetic appearance only Specs: MIL-A-8625 Type III -.0005 to.006 thickness

8. Reason for use: Repairs on aluminum parts Finish/Color: clear or yellow Specs: MIL-C-5541 Class 1A – For corrosion prevention Class 2 – For corrosion prevention where low electrical resistance is required

10. Reason for use: Improve corrosion resistance by removing foreign materials from the surface. Finish/Color: No change in color from process Specs: QQ-P-35

11. Reason for use: Creates an additional layer of protection on stainless steel Finish/Color: Typical colors include Yellow (common in Aerospace), Iridescent, Amber, Black, or Olive Drab (Military applications) Specs: QQ-P-416 Types: 1 – No supplemental treatment 2 – Supplemental chromate treatment (Most common) 3 – Supplemental phosphate treatment Class (Thickness): 1 –.0005 min 2 –.0003 min 3 –.0002 min

12. Steel plating – Cadmium is preferred Aluminum plating – Hard Anodize is preferred Stainless Steel – Passivation is preferred process