OSHA Danger Lockout Tag: Equipment Locked Out. PF-Cardstock, Tear-resistant, Waterproof, Pulp-free - no wood pulp or paper content. Pliable 10-mil poly-based tags will not crack, distort or shrink. Ideal for indoor and short-term outdoor conditions. Scuff-resistant, matte surface. 3/8 inch hole. RP-Plastic, High-strength, tear-resistant, weather-resistant and chemical-resistant for dirty and greasy environments. 15-mil thick rigid plastic, relatively bendable and ideal for indoor and outdoor temporary tagging applications. Mar-resistant, matte surface. 3/8 inch hole with reinforced metal grommet. HS-Laminate - Nearly indestructible, withstands tough, abusive conditions. Hard-sealed by thick laminate on both sides. Tear-proof, weatherproof, chemical-resistant. Withstands dirt, grease, liquid splashes and multiple rough handling. Scratch-resistant, matte-finish surface. 3/8 inch hole with reinforced pull-proof metal grommet.