Control traffic on your property and in your parking lot with Brady's Standard Traffic Signs. Brady B-959 Reflective Traffic Sign is a Type 1(Fed. Spec. L-S-300; ASTM D 4956) reflective sheeting applied to an aluminum sign panel used for traffic control. Conforms to MUTCD. Service temperature is -40 degrees fahrenheit to 175 degrees fahrenheit (-40 to 80 degrees Celsius). Average outdoor durability is 8 - 10 years (average expected outdoor life of product will depend on user definition of failure and climatic conditions). Shelf Life is unlimited when stored at 70 degrees fahrenheit (21 degrees Celsius) and 40 percent to 50 percent R.H.