MIL-DTL-82604A (OS)
3.2.3 Softening point stability. The softening point of the asphaltic compound shall be
within the temperature range of 172 to 205 ºC when tested in accordance with 4.5.4.
3.2.4 Penetration. The asphaltic compound shall show the following penetration values
when tested in accordance with 4.5.5:
a. 200 g/60 sec/0 ºC
5 - 35
b. 100 g/5 sec/25 ºC
5 - 35
c. 50 g/5 sec/46 ºC
80 max.
3.2.5 Flash point. The minimum flash point of the asphaltic compound shall be 300º C
when tested in accordance with 4.5.6.
3.3 Performance requirements.
3.3.1 Heat resistance. A dried film of the asphaltic compound on a metal panel shall not
sag or flow when heated by immersion in a silicone oil bath maintained at 172 ± 1º C for 1 hour.
Test procedure shall be in accordance with 4.5.7.
3.3.2 Acid resistance. A dried film of the asphaltic compound on a metal panel shall
withstand the action of picric, sulfuric, nitric, and hydrochloric acids for 6 hours without
disintegration, browning, or dulling. There shall be no etching of the metal underneath the
compound. Test procedure shall be in accordance with 4.5.8.
3.3.3 Water resistance. A dried film of the asphaltic compound on a metal panel shall
withstand immersion in distilled water for 18 hours without blistering, whitening, and not more
than a slight dulling. Test procedure shall be in accordance with 4.5.9.
3.3.4 Flexibility. A dried film of the asphaltic compound on a metal panel shall show no
chipping, scaling, or cracking when tested in accordance with 4.5.10.
3.4 Reactivity requirement.
3.4.1 Reactivity. The reactivity for the asphaltic compound in contact with H-6
(MIL-E-22267) explosive and tritonal (80 ± 3 parts TNT, MIL-DTL-248, and 20 ± 3 parts
aluminum, MIL-DTL-512) explosive in the vacuum stability test of 4.5.11 shall not exceed
3.0 milliliters (ml) of gas (over and above that generated by the controls).
3.5 Application - coating requirements.
a. The asphaltic compound shall be suitable for application into bombs using equipment
and processing techniques that provide the interior coating requirements of applicable drawings
for thermally protected bombs (see 6.4.1) in one application. The applied coating shall be self-
adhering and also shall adhere to surfaces coated with cavity paint, MIL-DTL-450. Any inherent
separation of components of the asphaltic compound shall not affect application or coating
characteristics of the material.
b. The coated bombs (3.5a) shall be capable of being loaded with H-6 explosive to the
requirements of applicable drawings for thermally protected bombs (see 6.4.1) without
separation of the coating or other loss of coating effectiveness.
4
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business