Industry Leading Durability: Our 80 mils thick Aluminum 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 Hand Wash Station signs use industry-leading 3M inks and not off-brand or other low-durability inkjet pigments that fade in a year or two. 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. Signs Give a Warning – So You Don’t Have To: Personally warning people is not always the right solution. Say it with signs! Signs are the safest and the most effective medium to reach out to maximum people on your property.