Technical data

6.12.15.1 Characteristics. This is a water emulsion,
protective, strippable, sprayable, multi-coat coating for appli-
cation over metallic, painted, and plastic surfaces that comes
in one type with several classes.
Type II, Class 1 Base coat (black)
Type II, Class 5 Topcoat (white or olive drab)
Type II, Class 6 Topcoat (white)
Type II, Class 7 Topcoat brushable
6.12.15.2 Uses. These materials are used to protect
equipment and aircraft during shipment and storage.
6.12.15.2.1 Type II, Class 1. This is a black material
intended for use as (1) a strippable, protective coating for
acrylic plastic bulk materials and assemblies containing
acrylic plastics when the protected item is shipped fully
covered or stored under cover, and (2) as a basecoat for Type
II, Class 5 and Class 6 materials.
6.12.15.2.2 Type II, Class 5. This is a white or olive
drab material intended to be used only as a topcoating for
Type II, Class 1 material. This combination protective system
serves as a sprayable, strippable, protective coating for
application on metallic, painted and plastic surfaces, such as
entire aircraft, missiles, rockets and transportation vehicles
during outdoor storage and overseas deck-loaded shipments.
This material should be applied to a dry film thickness of 3±1
mils.
6.12.15.2.3 Type II, Class 6. This is a white material
intended to be used only as a topcoating for Type II, Class 1
material. This combination protective system serves as a
sprayable, strippable, protective coating for applications on
metallic, painted and plastic surfaces, such as entire aircraft,
missiles, rockets, and transportation vehicles during outdoor
storage and overseas deck-loaded shipments. This material
should be applied to a dry film thickness of 6 ±1 mils.
6.12.15.2.4 Type II, Class 7. This material is intended
as a brushable coating for patching or repairing damaged
Class 5 or Class 6 coatings.
6.12.15.3 Thinning. Thin as required per the manufac-
turer’s instructions.
6.12.15.4 Application. Apply by HVLP spray methods.
Class 5 material may be applied at 75 ±15° F and 50 ±10%
RH. Class 6 material may be applied within a temperature
range of 50° F to 115° F and 50 ±10% RH, but the pot life and
cure time will be much longer at the lower temperature and
much shorter at the higher temperature as compared to those
at 75° F.
6.12.15.5 Drying Time. Air dry at 75° F and 50% RH:
Type II, Class 1 3 hours
Type II, Class 5 2 hours
Type II, Class 6 2 hours
Type II, Class 7 2 hours
6.12.16 Resin Coating, Unpigmented, For Engine
Components and Metal Parts, MIL-PRF-3043.
6.12.16.1 Characteristics. This is a permanent thermo-
setting resin coating free from drying and non drying oils and
cellulose. The resin coating is baked on, and provides a
transparent green film on the surface.
6.12.16.2 Uses. The coating is used as a permanent
corrosion preventative, oil resistant coating for metallic
non-bearing surfaces of engine parts, airframe components,
magnesium parts, gun mounts, gear housings, and other
components. The material is specifically used on the interior
surfaces of droppable steel tanks and tubing of methylbro-
mide or trifluorobromethane fire extinguishing systems.
6.12.16.3 Thinning. As recommended by the manufac-
turer.
6.12.16.4 Application. Apply by dip or spray at room
temperature.
6.12.16.5 Drying Time. The coating air dries to handle
in 30 minutes at room temperature. Fully cure by baking in
oil or by oven baking.
6.12.16.5.1 Baking in oil. Air dry for 16 to 24 hours and
immerse in MIL-PRF-7808 hot lubricating oil for 15 minutes.
6.12.16.5.2 Oven baking. Air dry for one hour fol-
lowed by 30 minutes baking at 325° F.
6.12.17 Coating Kit, Epoxy, For Interior of Steel Fuel
Tanks, MIL-PRF-4556.
6.12.17.1 Characteristics. This is a kit containing a
primer and a topcoat, each of which are two-component kits
of epoxy coatings. This coating is for protecting interior
surfaces of steel tanks used for transportation and storage of
fuels. It is lead and chromate free and has a maximum 340
g/L (2.8 lbs/gal) VOC content.
6.12.17.2 Uses. This coating is intended for protection
of sand blasted interior surfaces of mobile and stationary mild
steel tanks and auxiliary handling equipment used for the
storage and transportation of military fuels and oils.
6.12.17.3 Mixing. Thoroughly mix Component A, pref-
erably using mechanical agitation, and then add one part
Component B to four parts by volume of Component A.
6.12.17.4 Thinning. Thin as recommended by the
manufacturer.
TO 1-1-8
6-19