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 Shelf Life
44819 red threaded cap tip 12 2 years
44401 yellow threaded cap tip 12 2 years
44175 White Threaded Cap Tip 12 2 years
44177 Green Threaded Cap Tip 12 2 years
44179 Blue Threaded Cap Tip 12 2 years
44203 Black Threaded Cap Tip 12 2 years

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Physical State Liquid.
Odor Pungent, mild
Flash Point 15.56 °C / 60 °F
Boiling Point 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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