Let the people know that you're transporting Potassium Hydroxide to keep them away from danger. Use the Potassium Hydroxide Solution Class 8 placard for easy and effective identification. Made from high-quality materials, this hazmat placard can be placed on any surfaces, whether uneven or not. These economical placards also endure various environmental conditions, so they can last long. They also meet standard DOT specifications for effective and regulated marking. DOT placard Class 8: Corrosives Materials: aluminum, cardstock, adhesive vinyl, magnetic, rigid vinyl Adhesive vinyl: resistant to moisture, weather, corrosive conditions Aluminum: corrosion-proof, UV-resistant Magnetic: adheres to ferrous metal surfaces Rigid vinyl: resistant to moisture, chemical, weather, and tear Conforms to DOT HM-206 Sizes: 10.75" x 10.75"