Reflective Signs Are Hard to Ignore
Reflective signs illuminate when struck by light from headlights or any other source. This makes the Park At Your Own Risk Sign readable even in dark and low lighting.

3M Enginee...

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Reflective Signs Are Hard to Ignore
Reflective signs illuminate when struck by light from headlights or any other source. This makes the Park At Your Own Risk Sign readable even in dark and low lighting.

3M Engineer Grade [“EG”] Reflective
3M Engineer Grade reflective signs are the most common material found on our public roads. 3M Engineer Grade signs have up to 7 years of outdoor warranty.

USA’s Oldest Sign Manufacturer
Family owned since 1918, we take immense pride in our signage. Being one of the oldest certainly means we know this business in and out. Our South Dakota factory is the oldest manufacturer of metal signs in the USA. We have been an integral part of safety and convenience our signs have provided over the years.

Industry Leading Durability
3M Engineer Grade Aluminum signs have an outdoor warranty of up to 7 years, but most signs last much longer. Our 63 mil thick signs are laminated for enhanced performance. You can clean off graffiti and your graphics are protected. Unlike many other signs, our Not Responsible For Theft Or Damage To Vehicles Or Contents signs use industry-leading 3M inks and not off-brand or other low-durability inkjet pigments that fade in a year or two.


  • 3M AUTHORIZED. Authorized signs are certified to the 3M Matched Component System. This assures that signs are durable outside.
  • DURABLE ALUMINUM. Signs use 3M reflective Engineer Grade film mounted to 63 mils thick aluminum and last up to 7 years outside. Signs do not have a low-cost plastic core.
  • LAMINATED. Graphics are protected from weather and abuse. Graffiti can be cleaned off. Laminated signs outlast competitive unlaminated or overcoated signs.
  • ROUNDED CORNERS. Signs have rounded corners and burr-free corners for safe handling, longer life and a professional appearance.
  • INSTALLATION. All signs come with burr-free corners and 3/8" punched and pre-cleared holes. Signs mount to U-channel posts, square or round galvanized posts, wooden posts and chain link fences.
  • GIVE A HEADS UP. Convey your Not Responsible for Theft or Damage message with this sign.
  • 3M AUTHORIZED. Authorized signs are certified to the 3M Matched Component System. This assures that signs are durable outside.
  • DURABLE ALUMINUM. Signs use 3M reflective Engineer Grade film mounted to 63 mils thick aluminum and last up to 7 years outside. Signs do not have a low-cost plastic core.
  • LAMINATED. Graphics are protected from weather and abuse. Graffiti can be cleaned off. Laminated signs outlast competitive unlaminated or overcoated signs.
  • ROUNDED CORNERS. Signs have rounded corners and burr-free corners for safe handling, longer life and a professional appearance.
  • INSTALLATION. All signs come with burr-free corners and 3/8" punched and pre-cleared holes. Signs mount to U-channel posts, square or round galvanized posts, wooden posts and chain link fences.
  • GIVE A HEADS UP. Convey your Not Responsible for Theft or Damage message with this sign.

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