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 threaded cap tip 12
44401 yellow threaded cap tip 12
44175 white threaded cap tip 12
44177 green threaded cap tip 12
44179 blue threaded cap tip 12
44203 black threaded cap tip 12

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Appearance / Physical State Liquid.
Odor Pungent, mild
Flash Point 15.56 °C / 60 °F
Boiling Point / Range 117.22 °C / 243 °F
VOC Content 86.1% 757 g/L
Evaporation Rate > 1 (air = 1)
Vapor Density > 1 (air = 1)
Prop 65 Warning YES

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