Spray Safe: The Rules For Insect Repellent And FR Clothing

Spray Safe

With every new bug season, come swarms of new questions as to how to properly use insect repellent while wearing FR garments. Here are Bulwark’s “do and don’t” details. Make that, DEETails.

DEET is the active ingredient in many well known, and often used, insect repellents (liquids, lotions, sprays, wristbands, etc.). It is used to ward off biting pests such as mosquitoes and ticks – insects that may or may not be carrying far peskier diseases like West Nile Virus and Lyme Disease.

The problem for those who work where there are arc flash and flash fire hazards? DEET is HIGHLY flammable. Any flame resistant clothing sprayed with it has the potential to ignite and continue to burn if exposed to an ignition hazard.  Your guys don’t need that kind of fuel source.

Bulwark’s best advice: Do NOT put DEET on your FR clothing.  Ever. So stay, and spray, safe as warm weather approaches.


  • Jason Griffin
    April 30, 2015
    You should mention that repellents containing permethrin are safe to use on FR products and are even recommended for use by wildland fire fighters by the USDA. Long lasting permethrin applications like Insect Shield will last all season or more.
  • Gus Chiggins
    July 6, 2015
    It sounds like using deet on any kind of fire resistant clothing is a bad idea. It also sounds like some FR clothing can also help fight bugs, and pests. I always wear long-sleeves and pants to keep bugs from biting me. They also help keep me warm when it's cold out. http://hudsonworkwear.com
  • Mary Miller
    October 26, 2017
    I would love to Distribute these for sale online and a private store of my own is that possible

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