Use Aluminum Signs
Here's an example of why it's better to use signs constructed from aluminum instead of plastic. The picture shows a plastic RF Safety Notice sign that is mounted on a gate to a wireless facility. It appears someone bumped the gate with their vehicle and cracked the sign. An RFSigns.com RF Safety Notice Sign mounted to this gate would not crack like this as our signs are made from .040 gauge aluminum. If not replaced, the halves of the broken plastic sign will eventually break off in the wind, leaving the site without critical safety signage.
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