SUPER-ENGINEER GRADE REFLECTIVE TAPE (SEG) is 60% to 100% brighter than regular engineering grade reflective tape. Great for smooth flat or smooth round surfaces like pipes, bollards, and bar gates. SEG is a Type II retro-reflective adhesive tape that is approximately 5.5 mil and has a permanent acrylic adhesive with a peel-off backing. It utilizes embedded microscopic glass beadlets to reflect light and is commonly used for reflective striping or markings on vehicles, bicycles, wheelchairs, bollards, & stock gates. It meets ASTM specifications D 4956 and LS-300C is resistant to weathering and fading and has a 12-year minimum longevity.