 |
|||
|
|
|||
| ||||||||||
|
|  MIL-E-24763A(SH)
w/INT. AMENDMENT 1
3.8.4.3. Accelerated storage stability. After storage at 60C (140F) for 30 days as specified in 4.6.1.3, the
unopened, original container of enamel shall be re-dispersible by mechanical shaking within 5 minutes to a uniform
condition and shall meet the requirements specified in 3.8.1, 3.8.5, 3.8.6, and 3.8.7. When tested in accordance with
4.6.5, the CIELAB color difference of the mixed enamel shall not be greater than 1.0 CIELAB units from the
original color values measured prior to the shelf life test. The mixed enamel shall also meet the requirements of
3.7.2, when the color difference is calculated using as the original color that was obtained for the 1-year storage test
sample.
3.8.5. Spraying properties. When tested as specified in 4.6.2, the enamel shall spray satisfactorily and shall
show no running, sagging, or streaking. The dried film shall show no blooming, blushing, bubbling, cratering,
dusting, floating, fogging, hazing, mottling, orange peel appearance, pinholing, seeding, or streaking in accordance
with method 4331.2 of FED-STD-141.
3.8.6. Brushing properties. When tested as specified in 4.6.3, the enamel shall brush easily and have good
flowing and spreading qualities and shall dry to a uniform film. The dried film shall show no running, sagging, or
streaking. The dried film shall show no runs, blooming, blushing, bubbling, cratering, dusting, floating, fogging,
hazing, mottling, orange peel appearance, pinholing, seeding, or streaking in accordance with method 4331.2 of
FED-STD-141.
3.8.7. Rolling properties. When tested as specified in 4.6.4, the enamel shall roll easily and have good
flowing and spreading qualities and shall dry to a uniform film. The dried film shall show no running, sagging,
blooming, blushing, bubbling, cratering, dusting, floating, fogging, hazing, mottling, orange peel appearance,
pinholing, seeding or streaking in accordance with method 4335 of FED-STD-141.
3.8.8. Knife test. When tested as specified in 4.6.7, a film of enamel shall adhere tightly to the primer. It
shall be difficult to furrow off with the knife and shall not flake, chip or powder. The enamel shall not show brittle
or rubbery characteristics; the knife cut shall show beveled edges.
3.8.9. Primer compatibility
3.8.9.1. Dry adhesion. When tested as specified in 4.6.11.1, films consisting of primer and enamel shall
show no blistering, wrinkling, or any other evidence of separation. The adhesion by tape test shall be rated no less
than 4A. The enamel shall adhere tightly to the primer. Using a scalpel, the enamel shall not lift from the primer
without leaving some enamel attached to the primer.
3.8.9.2. Wet adhesion. When tested as specified in 4.6.11.2, films consisting of primer and enamel shall
show no blistering, wrinkling, or any other evidence of separation. The adhesion by tape test shall be rated no less
than 4A. The enamel shall adhere tightly to the primer. Using a scalpel, the enamel shall not lift from the primer
without leaving some enamel attached to the primer.
3.8.10. Enamel recoatability. When tested as specified in 4.6.12, films consisting of enamel shall show no
blistering, wrinkling, or any other evidence of intercoat separation. Films shall be difficult to separate from one
another. Using a scalpel, the enamel shall not lift from the primer without leaving coating on the overcoated film.
12
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals