two coats of clear lacquer.] [[aluminum] [bronze] with sprayed background.
Letters shall be satin polished.]
2.4.2
Chemically Etched Metal Plaques
2.4.2.1
Fabrication
Plaque shall be chemically [single-] [double-] etched one-piece [brass]
[bronze] [_____] [0.8128] [1.6256] [3.175] [6.35] mm [0.032] [0.064]
[0.125] [0.250] inch thick.
2.4.2.2
Size
Plaque size shall be [_____] [as shown].
2.4.2.3
Finish
[Single-etched raised areas shall be in [gold-tone] [silver-tone]
[bronze-tone] finish and recessed areas shall be colorfilled.]
[Double-etched raised areas shall be [gold-tone] [silver-tone] and recessed
textured areas shall be [gold-tone] [silver-tone] colorfilled.]
2.4.3
Frost and Surface Oxidized Plaques
2.4.3.1
Fabrication
Plaque shall be frosted and surface oxidized one - piece [anodized
aluminum] [brass] [bronze] [stainless steel] [1.02] [3.175] mm [0.040]
[0.125] inch thick.
2.4.3.2
Size
Plaque size shall be [_____] [as shown].
2.4.3.3
Finish
[Material finish shall be [satin] [polished].] [Frosted areas shall be
oxidized [black for aluminum or stainless steel] [or] [black or brown, for
brass or bronze].]
2.5
DIMENSIONAL BUILDING LETTERS
**************************************************************************
NOTE: These letters are for direct application to
exterior building surfaces. Drawings must show
mounting type details.
**************************************************************************
2.5.1
Fabrication
Letters shall be fabricated from [cast aluminum] [cast bronze] [2.29 mm
0.090 inch aluminum sheet] [3.17 mm 0.125 inch aluminum sheet] [extruded
aluminum] [_____]. Letters shall be cleaned by chemical etching or cleaned
ultrasonically in a special degreasing bath. Letters shall be packaged for
protection until installation.
2.5.2
Typeface
Typeface shall be [helvetica medium] [_____] [as indicated].
SECTION 10430
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