Grade Descriptions
The SlipNOT® surface is applied to metal substrates by a plasma stream deposition resulting in peaks and valleys, creating a slip resistant surface. The SlipNOT® surface is available in three grades; Grade 1 (Fine), Grade 2 (Medium) and Grade 3 (Coarse). The different Grades available refer to the depth of the SlipNOT® surface.
Click below for information on a specific Grade:
![]() Grade 1 – Fine |
![]() Grade 2 – Medium |
![]() Grade 3 – Coarse |

- The Grade 1 (Fine) surface has an average peak to valley surface depth of 0.010” – 0.012”.
- This grade is used in light duty applications or areas where a minimum surface roughness is desired. This surface produces the same high coefficient of friction as our Grade 2 (Medium). Any surface treatments, such as priming or painting, should not exceed 5 mils to prevent degradation of the SlipNOT® performance. Hot dipped galvanizing is not available for Grade 1 steel plates.
- Grade 1 (Fine) is available for all SlipNOT® surfaces.

- This surface grade is applicable for nearly every situation. With an average peak to valley surface depth of 0.020”-0.025”; Grade 2 (Medium) SlipNOT® provides maximum traction, durability and longevity.
- Surface treatments to this grade should not exceed a total of 10 mils to prevent reduction of the surface coefficient of friction. For steel plates, hot dip galvanizing is the ideal surface protection.
- The Grade 2 (Medium) is available for all SlipNOT® surfaces.

- This surface is used in the most demanding environments. With an average peak to valley surface depth of 0.032”-0.038”.
- This grade provides maximum durability and longevity. For extremely high traffic or highly contaminated environments, Grade 3 (Coarse) SlipNOT® provides maximum traction. Hot dipped galvanizing is the ideal surface protection for steel.
- Grade 3 (Coarse) is only offered in our steel SlipNOT® surface. Not available in aluminum and stainless steel surfaces.









