c.
Steel to be embedded in concrete.
d.
Copper, stainless steel, aluminum, brass, and lead except existing
coated surfaces.
e.
Hardware, fittings, and other factory finished items.
[f.
Surfaces in the following areas shall not be painted:
[_____]. ]
1.10.3
Mechanical and Electrical Painting
Includes field coating of [interior] [and] [exterior] new [and existing]
surfaces.
a.
Where a space or surface is indicated to be painted, include the
following items unless indicated otherwise.
(1)
Exposed piping, conduit, and ductwork;
(2)
Supports, hangers, air grilles, and registers;
(3)
Miscellaneous metalwork and insulation coverings.
[b.
Do not paint the following, unless indicated otherwise:
[(1) New zinc-coated, aluminum, and copper surfaces under
insulation]
[(2)
New aluminum jacket on piping]
[(3)
New interior ferrous piping under insulation].]
[1.10.3.1
Fire Extinguishing Sprinkler Systems
Clean, pretreat, prime, and paint new fire extinguishing sprinkler systems
including valves, piping, conduit, hangers, supports, miscellaneous
metalwork, and accessories. Apply coatings to clean, dry surfaces, using
clean brushes. Clean the surfaces to remove dust, dirt, rust, and loose
mill scale. Immediately after cleaning, provide the metal surfaces with
one coat primer per schedules. Shield sprinkler heads with protective
covering while painting is in progress. Upon completion of painting,
remove protective covering from sprinkler heads. Remove sprinkler heads
which have been painted and replace with new sprinkler heads. Provide
primed surfaces with the following:
a.
Piping in Unfinished Areas: Provide primed surfaces with one coat
of red alkyd gloss enamel applied to a minimum dry film thickness
of 0.025 mm 1.0 mil in attic spaces, spaces above suspended
ceilings, crawl spaces, pipe chases, mechanical equipment room,
and spaces where walls or ceiling are not painted or not
constructed of a prefinished material. [In lieu of red enamel
finish coat, provide piping with 50 mm 2 inch wide red enamel
bands or self-adhering red plastic bands spaced at maximum of 6
meters 20 foot intervals.]
b.
Piping in Finished Areas: Provide primed surfaces with two coats
of paint to match adjacent surfaces, except provide valves and
operating accessories with one coat of red alkyd gloss enamel
SECTION 09900
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