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Manhole Covers

Designed for applications where safety and efficiency
are vital for industrial and commercial environments


Manhole Covers

March 21, 2016

Across the country, utility companies are requiring manhole covers and pull box covers that are long lasting, low maintenance, and slip resistant.  Bare metal covers can create a hazardous situation when covered in oil, water, snow or other slippery substances.  In order to reduce slip and fall accidents and avoid costly lawsuits, SlipNOT®’s non-slip surface may be the solution.

For new construction, or retrofitting existing structures, SlipNOT® fabricated plates can easily be retrofitted over existing traditional gas, water, electric and telephone access frames, making it easy to implement safety and meet new regulatory standards.

SlipNOT® manhole covers exceed all ADA and OSHA recommendations for slip resistance. The patentedSlipNOT® surface deposits molten metal through a plasma stream deposition onto any metal substrate resulting in a random hatch matrix with unparalleled traction. The SlipNOT® coating has a file hard surface of between 55-63 on the Rockwell “C” scale and a bond strength of at least 4,000 psi.

SlipNOT® manhole covers are available in steel, galvanized steel, stainless steel, and aluminum and are used and approved by the following utilities:

  • Seattle City Lights
  • Sacramento Municipal Utility District (SMUD)
  • Pacific Gas and Electric (PG&E)
  • Portland Gas and Electric
  • Colorado Springs Utilities
  • Among others