MIL-DTL-81706B
1.2.3 Material forms. Chemical conversion materials are of the following forms (see 6.2).
Form I
Concentrated liquid
Form II
Powder
Form III
Premixed liquid (ready for use touch-up brush application)
Form IV
Premixed liquid, thixotropic (ready for use)
Form V
Premeasured powder, thixotropic (ready for use after addition of water)
Form VI
Premixed liquid (ready for touch-up use in self-contained applicator device)
1.2.4 Application methods. Chemical conversion materials are of the following application
methods (see 6.2).
Method A Spray
Method B Brush-on or wipe-on
Method C Immersion
Method D Applicator pen or presaturated applicator device
1.3 Part or identifying number (PIN). PINs to be used for the chemical conversion materials
for coating aluminum and aluminum alloys acquired to this specification are created as follows:
M 81706 1 A 2 B
Application method (see 1.2.4): A Spray
B Brush
C Immersion
D Applicator
Material form (see 1.2.3): 1 Form I Concentrated liquid
2 Form II Powder
3 Form III Premixed liquid
4 Form IV Premixed liquid
5 Form V Premeasured powder
6 Form VI Premixed liquid
Class (see 1.2.2): A Class 1A Maximum corrosion
protection
B Class 3 Protection against corrosion
where low electrical resistance is required
Type (see 1.2.1): 1 Type I Compositions with hexavalent
chromium
2 Type II Compositions with no
hexavalent chromium
Specification number
M prefix
2
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