Our 18" Diamond Non-Reflective Sign Blanks are manufactured from alodized aluminum with non-reflective vinyl on one or both sides and feature 1 1/2" radius corners and 3/8" mounting holes.
All Hall Signs aluminum blanks are manufactured at our Bloomington facility per U.S. Bureau of Public Roads Standards. Our standard blanks have 3/8" holes for mounting and radius corners in accordance with the Federal Standard Highway Signs Manual. The aluminum substrate base for our aluminum sign blanks is chemically treated to add longer life and weather resistance. Non-Reflective Aluminum Blanks are covered with white vinyl material on one or both sides.
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