2" x 30 ft Black/Glow Hazard Safety Glow Tape Protects your workers during blackouts and evacuations. Our Glow-in-the-Dark Tapes will “GLOW” 6+ hours. This product comes with an aggressive permanent pressure sensitive adhesive that will adhere to most any clean, dry surface. Tape absorbs any ambient or UV light source, then releases this stored energy in darkness. Our Glow-In The-Dark tape offers 6+ hours of Glow to the light adjusted eye.