Temporary Condition signs (TC Signs), Warning Signs (WA, WB, WC Signs) and Regulatory Signs (RA, RB, RC Signs). INPS uses reflective material to optimize visibility. Reflectivity specifications vary according to MTO/MUTCD standards. INPS uses a full line of 3M durable reflective sheeting, 3M Diamond Grade, 3M High Intensity Prismatic or 3M Engineering Grade. We print with 3M Screen Printing UV Ink, 3M Digital Prink UV Inks and use 3M vinyl. Custom Options available.