MIL-PRF-24763B(SH)
3.8 Quantitative requirements. The enamel shall conform to the quantitative requirements specified in Table
IV and as follows when tested as specified in section 4.
TABLE IV. Quantitative requirements of the enamel.
Requirements
Characteristics
Minimum
Maximum
Consistency, Krebs-Stormer, shearing rate, equivalent krebs unit
---
100
Fineness of Grind, Hegman
6
---
Flashpoint, degrees Celcius (ºC) (Fahrenheit (ºF))
38 (100)
---
VOC, g/L (Lb/gal)
Type II
---
250 (2.1)
Type III
---
100 (0.84)
Drying time:
Set-to-touch, hours
---
2
Dry through, hours
---
8
Dry-to-recoat
---
16
Gloss (60-degree specular)
Class 1
85
---
Class 2
45
60
Class 3
7
12
Coarse particles and skins, percent by weight
---
0.2
Flexibility, 1 mil dry film, 0.25-inch mandrel
Pass
---
Reflectance
26173, 26270, 26373
800 nanometers
0.60
1000 nanometers
0.75
26008
800 nanometers
0.35
1000 nanometers
0.50
Dry film contrast ratio, percent (All colors)
0.94
---
Sag resistance, anti-sag index
7
---
3.8.1 Color. The color shall be characteristic of the pigments used and shall match the following as specified
(see Table V and 4.5.5):
(a) Colors defined by Tristimulus values shall match the following when measured in accordance with 4.5.5.1.
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