Stop Here On Red Sign Material:Diamond Grade 10+ There are federal standards for

There are federal standards for minimum reflectivity on all speed limit signs

Speed Limit 5 mph

or on downtown streets where speeds must be reduced

Ask for square back plate if you intend to mount brackets to a flat surface

Individual components available

Stop Here On Red Sign Material:Diamond Grade 10+ There are federal standards forSize: 24x36 We make all our signs from . 080 thick aluminum. Other companies use steel which rusts, plastic which cracks or warps, or a thinner gauge aluminum (. 060 or . 040) which bends or buckles. Material Details We use 3M reflective sheeting and 3M UV resistant inks. 3M offers the following on their sheeting: 3M 3400 Series Engineer Grade Prismatic (EGP): Rated for 5 7 year outdoor lifespan 3M 3930 Series High Intensity Prismatic (HIP):