Model 511 & 512 CottMARK Flat Markers by Cott

Graphic Signs & Markers with Flexibility


The COTTMark 511 and 512 warning signs and utility right of way marker systems combine the high flexibility and simple installation of traditional flat markers with Cott's unique field-proven graphic system.

The COTTMark 511 thermoplastic and 512 thermoset are available in several configurations. They are used for marking buried:

  • Telephone Cables
  • Electric Cable
  • Television Cables
  • Petroleum Pipelines
  • Gas Pipeline
  • Chemical Pipelines
  • Water Pipelines
  • Sewer Lines
  • Telephone Cables


  • High Flexibility - Materials and profile configuration allow COTTMark® to withstand repeated impacts by vehicles or live stock and return an upright position.
  • Easily Installed - By using a conventional slide hammer, one man caninstall a marker in one minute. No digging is required.
  • Guaranteed - Patented graphic system molds signs directly onto the COTTMark. The warning sign is guaranteed not to fade peel or disbond for the life of the linemarker. All warning signs are custom designed for each utility or pipeline and conform to the spirit and letter of US Department of Transportation Regulations 192.707 and 195.410.
  • Strong & Maintenance Free - Molded from engineering grade plastics, COTTMark has twice the impact resistance of aluminum, four times the resistance of PVC yet weighs one eighth as much as a steel post. Unlike metal signs, COTTMark will not corrode, shatter or peel. The integral color never requires painting to preserve its factory appearance. Maintains complete dimensional stability from -40°F (-40°C) to +175°F (80°C).
  • Safe - Non-conductive plastic drastically reduces shock hazard from induced current or short circuits. All plastic construction virtually eliminates impact damage to vehicles and people.


    Red, Orange, Green, Yellow, Blue, Black and White are standard Cott colors. Special colors to match company logos or other special requirements available by request. All colors are stabilized against ultraviolet attack and will not fade.


Every profile available in 5', 5½', 6' and 6½' standard lengths. Other lengths by special order.