Avoid potential risks when transporting certain solids with Labelmasters Dangerous When Wet Wordless Placards. These DOT placards meet the specifications of the UN Recommendations for the Transport of Dangerous Goods, the IMDG Code and 49 CFR 172.500 for domestic and international shipments of hazardous materials by highway, rail and water. They also pass IMOs 90-day sea water immersion test (IMDG 5.3.1.1.1). Using UV inks that retard peeling, chipping and fading, they are printed on permanent vinyl that is backed with a high-tactile adhesive that makes them ideal for permanent applications or dedicated equipment. Blue and white, these Hazard Class 4 placards measure 273 x 273mm and are sold in packs of 25 or cases of 900.