2" Inch 3M Black Type 1 680 Flexible Reflective Tape ASTM D4956 Type 1 Reflective Tape Rated for a 9-year outdoor life Single-layer design meaning it will not delaminate like other reflective tapes. Flexible and Conformable. Very aggressive adhesive. Peel, stick, and press on with a soft cloth. (Clean dry smooth surface) Used to mark emergency vehicles, fire trucks, ambulances, helmets, loading dock areas, bollards, poles, dumpsters, gates, barricades, tractor-trailers, and more 3M Black Type 1 680 Flexible Reflective Tape ENGINEER GRADE REFLECTIVE TAPE (ELG) is great for smooth flat or smooth round surfaces like a pipes, bollards, and bar gates. ELG is a Type I retro-reflective adhesive tape that is approximately 7 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 has a 9-year minimum longevity. On vehicles, it is best applied using a soapy water solution and a squeegee. For best results, the adhesive should be allowed to cure for about 48 hours. ASTM D4956 Type 1 Reflective Tape. Single-layer design meaning it will not delaminate like other reflective tapes. Rated for a 9-year outdoor life. Visible for hundreds of feet. Flexible and Conformable Very aggressive adhesive. Peel, stick, and press on with a soft cloth. (Clean dry smooth surface) Used to mark emergency vehicles, fire trucks, ambulances, helmets, loading dock areas, bollards, poles, dumpsters, gates, barricades, tractor-trailers, and more