The DYKEM® TUFF GUY™ is a heavy-duty, truly permanent ink marker which features a non-xylene based formula. This valve-action marker is ideal for permanent identification of parts or accessories. The clear, crisp marks resist fading even when subjected to varying, extreme climates. TUFF GUY™ won’t rub off slick surfaces like plastics and shrink wrap.


  • Ideal for transmission and engine marking that won’t chip off
  • Resistant to most coolants and cutting fluids
  • Permanent ink writes on smooth surfaces such as metal, aluminum, steel, plastics, cardboard, and more
  • Drying Time: 25 – 35 seconds


  • Dirt
  • Oil
  • Grease
  • Extreme weather conditions
  • Even degreasing solvents

Packaging Details

Part No. US Color Marker Tip Units/Case
44819 red medium, felt (#38) 48
44401 yellow medium, felt (#38) 48
44175 white medium, felt (#38) 48
44177 green medium, felt (#38) 48
44179 blue medium, felt (#38) 48
44203 black medium, felt (#38) 48

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Appearance / Physical State Liquid.
Odor Mild. Pungent.
Flash Point 57°F to 60°F (14 - 15.6°C)
Boiling Point / Range 243°F (117°C)
VOC Content 86 - 89%
Evaporation Rate > 1 (BuAc = 1)
Vapor Density > 1 (air = 1)
Prop 65 Warning Yes
Water Solubility Moderate

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