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3M AUTHORIZED. Authorized signs are certified to the 3M Matched Component System. This assures that signs are durable outside.
OFFICIAL SIGNS. Buy the same signs sold to our governmental customers. Over 1,000 municipalities buy their signs from us. 18" x 24" signs meet the DOT MUTCD R2-1 Specs for Speed Limit Signs. 12" x 18" speed limit signs are not covered by the MUTCD standard.
DURABLE ALUMINUM. Signs use 3M reflective High Intensity film mounted to 80 mils thick aluminum. All signs come with burr-free corners and 3/8" punched and pre-cleared holes. Signs do not have a low-cost plastic core.
LAMINATED. To achieve maximum durability, sign graphic are protected with a 3M traffic sign laminate. This provides enhanced weather and graffiti resistance.
INSTALLATION. Signs mount to U-channel posts, square or round galvanized posts, wooden posts and chain link fences.
Reflective Signs Save Lives
Easy to spot by day, and reflective at night, these official Speed Limit signs slow down traffic in your community or on your property. Prevent accidents and save lives.
3M High Intensity [“HI”] Reflective
3M High Intensity reflective signs offer exceptional reflectance - especially when approached at an angle. 3M High Intensity signs have 10 year outdoor warranty.
USA’s Oldest Traffic Sign Manufacturer
You can now buy the exact same signs that you see on public roads. Our South Dakota factory in the oldest manufacturer of traffic signs in the USA. Family owned since 1918, we take enormous pride in our signs and have been an integral part of the progression of our national Speed Limit sign designs and specifications over the years.
Industry Leading Durability
3M High Intensity signs have a 10 year outdoor warranty, but most signs last much longer. Our signs are laminated for enhanced performance. You can clean off graffiti and your graphics are protected. Unlike many other signs, our Speed Limit signs use industry-leading 3M inks and not off-brand or other low-durability ink jet pigments that fade in a year or two.
The biggest mistake customers make is to undersize the sign. The smallest speed limit signs in the DOT MUTCD standards is 18” x 24”. This size is most common. Smaller 12” x 18” signs are confined to private lanes, driveways, constricted parking lots and, even cart paths. The cost of installing and ordering a sign typically overwhelms the cost of the sign itself. Larger signs and more reflective signs get noticed (and obeyed) faster. Don’t scrimp.
Speed Limit 20 MPH Sign Official 3M HI Reflective from SmartSign 24"x18" - B00HKA9RD4