"Caution - Non-Potable Water, Do Not Drink" Label By SmartSign | 5" x 7" 3M Reflective Laminated Vinyl 3M AUTHORIZED. Made from Certified 3M components: inks, laminate and films. 3M Engineer Grade reflective labels shine brilliantly at night. DURABLE VINYL. Conformable vinyl has 7-year outdoor life and aggressive adhesive backing. INSTALLATION. Labels stick to flat or curved surfaces and can be used indoors or outdoors. SAFETY AWARENESS. Alert everyone to exercise caution while taking some burden off your shoulders, regarding safety on your property. LAMINATED. Graphics are protected from weather and abuse. Graffiti can be cleaned off. Laminated labels outlast competitive unlaminated or overcoated labels.