3.4.2.1
Base Coat
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NOTE: Delete base coat requirements when
one-component system is desired.
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Scratch in the base coat tightly, then immediately double back using
material from the same batch. Fill all voids and imperfections and level
the plaster to a true surface without the application of water. For good
bond or adhesion, roughen the final surface for bond by brushing or
cross-raking with a fine wire rake. For application of finish coat, set
the base coat and partially dry. If the base coat is totally dry, dampen
before finish coat application.
3.4.2.2
Finish Coat
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NOTE: A smooth-troweled finish will normally be
specified. If a textured finish is desired, it may
be added to the specification. The texture pattern
should be specified, i.e., swirl, skip trowel, etc.
Some texture finishes may require a greater coating
thickness.
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Scratch in the finish coat tightly, then immediately double back using
material from the same batch. After the plaster has been allowed to set up
slightly, lightly trowel the surface without the addition of water, filling
all voids and imperfections and eliminating surface irregularities. When
the plaster has become firm and prior to set, smooth-trowel the surface
using water sparingly. Avoid over troweling.
3.5
CLEANUP AND PATCHING
Remove plaster splashes from adjacent surfaces. Repair defects in the
veneer plaster. Plaster surfaces shall be smooth, clean, and in condition
to receive the finishing materials that will be applied.
-- End of Section --
SECTION 09215
Page 12
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