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Page Title:
Cleaning. treatment. and painting |
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|  MIL-P-29191B(YD1)
3 11 Fungus resistance. When specified (see 6.2), electrical components and
circuit elements, including terminal and circuit connections, shall be coated
with varnish conforming to MIL-V-173, except that.
Components and elements inherently inert to fungi or in hermetically
a.
sealed enclosures need not be coated.
b.
Current-carrying contact surfaces, such as relay contact points, shall
not be coated.
When used, the varnish shall be applied by spray, brush, or a combination of
both to give a minimum dry-film thickness of 1 mil to component or element
surfaces previously cleaned and prepared so that the surfaces are free from all
foreign matter which would interfere with the adherence or function of the
varnish.
3.12 Cleaning. treatment. and painting. Surfaces normally painted on
commercial vessels shall be cleaned, treated, and painted as specified herein.
Surfaces to be painted shall be cleaned and dried to insure that they are free
from contaminants such as oil, grease, welding slag and spatter, loose mill
scale, water, dirt, corrosion product, or any other contaminating substances.
As soon as practicable after cleaning, and before any corrosion product or other
contamination can result, the surfaces shall be prepared or treated to insure
the adhesion of the coating system. The painting shall consist of at least one
coat of primer and one finish coat. The primer shall be applied to a clean, dry
surface as soon as practicable after cleaning and treating. Painting shall be
with manufacturer's current materials according to manufacturer's current
processes and the total dry film thickness shall be not less than 2.5 roils over
the entire surface. The paint shall be free from runs, sags, orange peel, or
other defects. Unless otherwise specified (see 6.2), color of the finish coat
of the platform deck, hulls, and control console shall be Grey 16187, conforming
to FED-STD-595
Laminated type hulls shall be finished using the manufacturer's
standard impregnated gel coat of the same color.
3.13 Workmanship. All parts, components, and assemblies of the workboat
platform including castings, forgings, molded parts, stamping, bearings, seals,
and machined surfaces shall be clean and free from sand, dirt, fins, pits,
sprues, scale, and other harmful extraneous material. External surfaces shall
be free from burrs, dents, chipped paint, and rough or sharp edges, and corners.
Fasteners shall be tight without distorting the components being held. Operable
components shall function without binding or causing interference of movement.
3.13.1 Steel fabrication. The steel used in fabrication shall be free from
kinks , sharp bends, and other conditions which would be deleterious to the
finished product. Manufacturing processes shall not reduce the strength of the
steel to a value less than intended by the design. Manufacturing processes
All bends shall be made by controlled
shall be done neatly and accurately
means to insure uniformity of size and shape.
3.13.2 Threaded fasteners
Deck panels shall be secured to hulls using
suitable carriage bolts or equivalent through-bolting. Self-tapping screws, lag
bolts, insert anchor nuts, and similar fasteners susceptible to loosening by
vibration will not be acceptable for panel-to-hull and panel-to-panel
connections.
Each bolt shall be equipped with a locknut, lockwasher, and
castellated nut with cotter pin or other approved locking device (such as
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