Railroad Advance Warning Symbol Sign guide sign Posts are 2 3/8" O

Posts are 2 3/8" O

Posts must ship truck line

Help drivers get to where they need to go when you set up a detour for your road work

quality components

Red and white pattern repeats

Railroad Advance Warning Symbol Sign guide sign Posts are 2 3/8" OSizes Available: 30x30, 36x36 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