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MIL-DTL-53039 Coating, Aliphatic Polyurethane, Single Component, Chemical Agent ResistantThis specification covers single component, polymeric flattened, chemical agent resistant, aliphatic polyurethane coating for use as a finish coat on military tactical equipment, which includes ground, aviation and related support assets. Other than where noted, the materials are free of volatile organic hazardous air pollutants \(VOHAP-free\), free of inorganic hazardous air pollutants \(HAPs\) other than cobalt and non-hexavalent chromium. The coating is lead, cadmium, cadmium compounds and hexavalent chromium free.

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MIL-DTL-53039E

TABLE X. Index - Continued.

Hiding-power (contrast

D2805

4.6.9

Table VII

ratio)

Viscosity, Krebs-Stormer

D562

4.6.10

Table VII

Drying time

D5895

4.6.11

Table VII

Specular gloss

D523

4.6.12

Table VII

Infrared reflectance

Camouflage colors 2/

E308 and

4.6.2 and 4.6.13

3.3 and 3.3.1,

Other colors

E1331

Table I and II

Aircraft colors

Dark Sandstone, 33510

Spectral reflectance limits

Dark Green, 34082

E308 and

Table III, IV and

Green 383, 34094

E1331

IRR Foliage Green 504,

34160

Green 808, 34102

Condition in container

4.6.14

3.6.1

Accelerated storage

4.6.15.1

3.6.2.1

stability

Full container storage

D1849

4.6.15.2

3.6.2.2

stability

Spraying properties

4.6.16

3.6.3

Brushing properties

4.6.17

3.6.4

Flexibility

D522

4.6.18

3.6.5

Recoatability

4.6.19

3.6.6

Adhesion

D3359

4.6.20

3.6.7

Elevated temperature

D3359

4.6.21

3.6.8

adhesion

Water resistance

4.6.22

3.6.9

Hydrocarbon resistance

4.6.23

3.6.10

Acid resistance

4.6.24

3.6.11

Accelerated weathering

G154

4.6.25

3.6.12

STB resistance

4.6.26

3.6.13

Chemical agent resistance

4.6.27

3.6.14

Weather resistance

G90

4.6.28

3.6.15

1/ EPA Method 311.

2/ Exclude from this category Aircraft Green, 34031 and Aircraft Gray, 36300.

3/ Include the camouflage colors Aircraft Green, 34031 and Aircraft Gray, 36300 in

this category.

4.6.4 Pigment analysis. Determine the pigment content of the coating in accordance with

ASTM D2371. The pigment generated by this method shall be used for the screening tests of the

coating's heavy metal content as listed below. Check for compliance with tables VI and VIII and

3.4.1.