"Caution - Roof Slippery When Wet" Label by SmartSign | 10" x 14" Laminated Vinyl DURABLE VINYL. Made of 4 mil thick, conformable vinyl and has aggressive adhesive backing. INSTALLATION. Labels stick to flat or curved surfaces and can be used indoors or outdoors. LAMINATED. UV-resistant, weatherproof overlaminate protects the label from moisture, solvents, chemicals, abrasion and fading. EASY TO CLEAN. Laminated vinyl labels can be easily wiped off to remove dirt, dust, or grease. PROMOTE SAFETY.Labels speak volumes about your commitment to everybodys well-being by promoting safety.