The Defender Detectable Warning Tape, NMC (National Marker Company)C
Minimize field costs and time spent locating buried lines
Made from 5 mil., triple layer lamination of aluminum foil core encased in 100% virgin polyethylene, APWA (American Public Works Association) color coded, legend specific. Withstands temperatures from - 94⁰F to 200⁰F for longevity. Subsurface graphics permanently protected from soil acids and alkalis.