Provide 0.080-ga sheet aluminum sign panels in accordance with ASTM B 209, alloy 6061-T6 or alloy 5052-H38 with mill finish. Use the dimensions, filleted corners, hole sizes, and locations as shown on the sign standards, with the following exceptions: all holes shall be 3/8-inch diameter, and all corner radiuses shall be 1½- inch. Ensure panels are flat and straight within commercial tolerances. Treat sheet aluminum sign panels with a chromate type chemical conversion coating in accordance with ASTM B 449, Class II. This Bid includes the following sizes per Attachment A drawings. 6" X 12" Aluminum Sign Blank; 6" X 18" Aluminum Sign Blank; 6" X 24" Aluminum Sign Blank; 6" X 30" Aluminum Sign Blank; 6" X 36" Aluminum Sign Blank...
