SmartSign “Construction Area – Authorized Personnel Only, Trespassers Prosecuted” Sign | 24″ x 36″ 3M High Intensity Grade Reflective Aluminum Construction Area Authorized Personnel Only Trespassers Will Be Prosecuted – High Intensity Grade Reflective Sign, 80 mil Aluminum, 36″ x 24″ – Keep your construction site secure. Use a “construction area authorized personnel only trespassers will be prosecuted” sign. Geep un-necessary guests out. 3M AUTHORIZED. Official 3M reflective films and inks on durable, rustproof aluminum make certain that our signs meet all DOT requirements for out of doors parking and traffic signs. Hi Intensity Reflective Aluminum is 3x more reflective than Engineer Grade. REFLECTIVE. Signs have Hi Intensity Grade reflectivity that makes sure they may be able to be spotted at night. DURABLE & LAMINATED. Heavy-duty rustproof aluminum has a 10+ year out of doors durability rating backed by a 3M warranty. Graphics are safe from weather and abuse and graffiti will also be cleaned off. Laminated signs live longer than competitive unlaminated or overcoated signs. INSTALLATION. All signs come with pre-punched and pre-cleared mounting holes for easy installation. Signs have rounded, burr-free corners for secure handling. Signs mount to U-channel posts, square or round galvanized posts, wooden posts and chain link fences. MADE IN USA. We have been making signs for over 100 years in the USA. We know which signs work and which signs are durable out of doors. GIVE A MESSAGE. Convey your Construction Area – Authorized Personnel Only, Trespassers Prosecuted warning with this sign – before you need to intercede personally.