2.1.6
Air Erosion
Dust removal shall not exceed 0.25 gram per square meter 0.025 gram per
square foot when tested in accordance with ASTM E 859.
2.2
SEALER
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NOTE: Specify color contrasting with the
fireproofing to facilitate inspection.
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Sealer shall be the type approved by
the manufacturer of the fireproofing
material, shall be fungus resistant,
shall have a flame spread of 25 or
less and a smoke developed rating of
50 or less when tested in accordance
with ASTM E 84, and shall be [white]
[_____] [or] [green] color.
2.3
WATER
Water used for material mixing and surface preparation shall be potable.
PART 3
EXECUTION
3.1
SURFACE PREPARATION
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NOTE: Surfaces to receive sprayed fire protection
may be primed only as permitted by UL Fire Resist
Dir. Surfaces to be galvanized and/or left
unpainted must be coordinated with other sections.
Metal deck to receive fireproofing will be
galvanized and not primed or painted; coordinate
with Section 05300 STEEL DECKING.
Most applications of spray-applied fireproofing are
for unprimed and unpainted surfaces. Structural
members to receive fireproofing will not be painted
because the paint may weaken the cohesion or
adhesion of the fireproofing.
Ducts, piping, and conduit will not be installed
until fire protection materials have been applied to
all ceiling areas to be treated (avoiding underside
of the floor and roof decks) and application has
been approved; coordinate with mechanical and
electrical requirements.
If it is determined that surfaces to receive fire
proofing should not be painted, omission of painting
should be coordinated with Section 09900 PAINTS AND
COATINGS.
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Surfaces to be fireproofed shall be thoroughly cleaned of dirt, grease,
oil, paint, primers, loose rust, rolling lubricant, mill scale or other
contaminants that will interfere with the proper bonding of the sprayed
fireproofing to the substrate. Painted/primed steel substrates shall be
tested in accordance with ASTM E 736, with specified sprayed fireproofing
material, to provide the required fire-resistance rating; painted or primed
SECTION 07810
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