gal\)\) as applied. The primer is also formulated free of hazardous air pollutants \(HAP-free\). This primer is not to be used on tactical or combat equipment. Equipment primed with this material is not to be coated with chemical agent resistant coating \(CARC\) primers or topcoats.

Pages 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13 - 14 - 15 - 16 - 17 - 18 - 19 - 20 - 21 - 22 - 23 - 24

MIL-DTL-11414F

3.6.6 Flexibility. When tested as specified in 4.5.19, a film of the enamel shall withstand bending

without cracking or flaking.

3.6.7 Knife test. When tested as specified in 4.5.20, the enamel shall adhere tightly to and not

flake or crack from the metal surface. The film shall ribbon or curl from the metal on cutting and

the cut shall show beveled edges.

3.6.8 Water resistance. When tested as specified in 4.5.21, a film of the coating shall show no

blistering or wrinkling and no more than a slight whitening or softening immediately upon

removal from the water. Film softening shall not exceed a 2 pencil hardness difference

(see ASTM D3363) from an unexposed film with identical cure history prior to water exposure.

When examined two hours after removal, there shall be only a slight softening, whitening or

dulling. After 24 hours air drying, the panel which was immersed shall be almost

indistinguishable with regard to hardness, adhesion and general appearance from a panel

prepared at the same time but not immersed.

3.6.9 Hydrocarbon resistance. When tested as specified in 4.5.22, a film of the coating shall

show no blistering or wrinkling when examined immediately after removal from the hydrocarbon

test fluid. When examined 2 hours after removal, there shall be no excessive softening,

whitening, or dulling. Film softening shall not exceed a 2 pencil hardness difference

(see ASTM D3363) from an unexposed film with identical cure history prior to hydrocarbon

exposure. After 24 hours drying the portion of the panel which was immersed shall be the same

with regard to hardness, adhesion, and general appearance from a panel prepared at the same

time but not immersed.

3.6.10 Adhesion. The assessment of the adhesion of the coating film shall be determined by its

ability to not peel from the substrate when tested in accordance with ASTM D3359, as specified

in 4.5.23. The resultant test rating shall be classified as scale 4B or better.

3.6.11 Salt spray resistance. When tested as specified in 4.5.24 and examined immediately after

removal from the salt spray test, films of the enamel primer coating shall have a minimum rating

of No. 7, based on test method ASTM D1654, and the failure evaluation procedure for unscribed

specimens, procedure B. Upon completion of the salt spray fog test, remove the primer coating

film and inspect the substrate. There shall be no more than a trace of rusting, pitting, or corrosion

on the panels.

3.6.12 Weather resistance. When prepared and exposed as specified in 4.5.25, films of the

enamel primer coating shall show no cracking, checking, flaking, or loss of adhesion. On

removal of the coating system, the surface of the metal shall show no more than a trace of

rusting, pitting, or corrosion (see ASTM D610, table I, rust grade 9).

3.6.13 Reactivity. When subjected to the vacuum stability test as in 4.5.26, the reactivity of the

primer with the explosives listed in table III shall meet the requirements of Test 1, Procedure A

of STANAG 4147. Energetics that meet the reactivity requirements of Test 1, Procedure A of