Flame Resistant Pants

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Your Guide to Flame-Resistant Pants

Empowering Safety With D.E. Gemmill

Fire safety is paramount in various aspects of our lives, from our homes and workplaces to our recreational activities. When exposed to flames or intense heat, wearing proper protective clothing can significantly reduce the risk of burns and injuries. Flame-resistant pants play a crucial role in this protective gear, offering an essential layer of safety in situations with potential flame hazards.

What are Flame-Resistant Pants?

Unlike flame-repellent pants that focus on repelling flames and liquids, flame-resistant pants are inherently non-flammable and offer a higher level of protection against flame. They are constructed from materials that resist ignition and self-extinguish when the flame source is removed. This makes them ideal for environments where there’s a risk of prolonged or direct flame exposure.

Common materials used in flame-resistant pants include:

  • Nomex®: This synthetic fiber is known for its exceptional flame resistance and ability to retain its protective properties even after multiple washes. It is often blended with other materials like cotton or nylon for comfort and breathability.
  • Kevlar®: Another synthetic fiber known for its outstanding flame resistance and high tensile strength. Similar to Nomex®, it is often blended with other materials to improve comfort and flexibility.
  • Aramid blends: Fabrics combining Nomex® or Kevlar® with other materials like cotton or wool offer a balance of flame resistance, comfort, and durability.

Why and How are Flame-Resistant Pants Useful?

flame-resistant pants offer significant advantages in various situations with potential flame hazards:


  • High-risk occupations: Firefighters, welders, industrial workers in oil and gas refineries, chemical plants, and other environments with a high risk of flame exposure rely heavily on flame-resistant pants as part of their personal protective equipment (PPE).
  • Arc flash protection: Electricians and other workers at risk of exposure to electrical arcs, which generate intense heat and potential flames, require flame-resistant pants with specific arc flash ratings to ensure safety.
  • Military and law enforcement: flame-resistant pants are often used by military personnel and law enforcement officers in situations where there’s a risk of flame hazards, such as during combat operations or responding to emergencies.


  • Superior protection from burns and injuries: flame-resistant pants significantly reduce the risk of burns and injuries by preventing ignition and self-extinguishing when exposed to flames. This is crucial in high-risk environments where even brief contact with flame can be life-threatening.
  • Durability and extended protection: Unlike flame-repellent treatments that can diminish over time, flame-resistant pants retain their protective properties even after multiple washes, making them a reliable and long-lasting safety investment.
  • Compliance with safety regulations: Many industries have regulations mandating the use of flame-resistant clothing for specific tasks or occupations. flame-resistant pants ensure compliance with these regulations and protect workers in accordance with established safety standards.

Limitations of Flame-Resistant Pants

It’s important to understand that even flame-resistant pants have limitations:

  • Not flameproof: While they offer a high level of protection, flame-resistant pants are not entirely flameproof. Under prolonged or extreme exposure to flames, they can eventually burn or melt.
  • Heat stress: The inherent flame-resistant properties of the materials can sometimes trap heat, increasing the risk of heat stress in hot or humid environments. Proper ventilation and hydration are crucial when wearing flame-resistant pants in such conditions.
  • Cost: flame-resistant pants can be more expensive than regular clothing due to the specialized materials and construction involved.

Choosing the Right Flame-Resistant Pants

Selecting the appropriate flame-resistant pants requires careful consideration of several factors:

  • Level of flame risk: The level of flame risk in your environment should dictate the specific type of flame-resistant pants needed. Look for pants with relevant certifications and ratings based on the anticipated hazards.
  • Comfort and mobility: flame-resistant pants come in various styles and materials, offering a range of comfort and mobility levels. Consider factors like fabric weight, breathability, and freedom of movement to ensure the pants are suitable for your intended use.
  • Durability and washing instructions: Different materials and construction methods offer varying levels of durability. Choose pants made from high-quality materials and follow the manufacturer’s washing instructions carefully to maintain their flame-resistant properties.
  • Certifications and compliance: Ensure the flame-resistant pants you choose comply with the relevant standards and regulations for your work environment or specific application. Look for certifications from organizations like NFPA or ASTM International.

Additional considerations

  • Features: Look for features that enhance functionality and safety, such as reinforced seams for added durability, cargo pockets for storing essential tools, and reflective details for improved visibility in low-light conditions.
  • Pairing with other flame-resistant clothing: For comprehensive protection in high-risk environments, it’s crucial to pair flame-resistant pants with other flame-resistant clothing elements like jackets, gloves, and headwear. Ensure all components comply with the same safety standards and ratings for optimal protection.

Demystifying the Differences: Flame-Resistant vs. Flame Retardant vs. Flame Repellent

While all three terms – flame-resistant, flame retardant, and flame repellent – are associated with protection against flames, they represent distinct levels and mechanisms of safeguarding against flame hazards. Understanding these differences is crucial for selecting the appropriate type of clothing for specific needs.


  • Mechanism: flame-resistant materials are inherently non-flammable. They resist ignition and self-extinguish when the flame source is removed. This superior level of protection makes them ideal for high-risk environments where prolonged or direct flame exposure is a possibility.
  • Materials: flame-resistant pants are typically constructed from synthetic fibers like Nomex® and Kevlar® known for their inherent flame resistance. These fibers retain their protective properties even after multiple washes.
  • Applications: firefighters, welders, industrial workers in high-risk environments, and individuals exposed to prolonged heat or flames rely on flame-resistant pants as part of their personal protective equipment (PPE).
  • Limitations: While highly effective, flame-resistant pants are not flameproof. Under extreme or prolonged exposure, they may eventually melt or burn. Additionally, they can be more expensive than other options and may trap heat, requiring proper ventilation and hydration in hot environments.

flame Retardant

  • Mechanism: flame retardant materials are treated with chemicals that slow down the burning process and self-extinguish when the flame source is removed. This provides a layer of protection against ignition and reduces the severity of burns in case of contact with flames.
  • Materials: flame retardant treatments can be applied to various fabrics, including cotton and blends. However, the effectiveness of the treatment diminishes over time with wear and washing, requiring retreatment or replacement of the garment.
  • Applications: flame retardant clothing is often used in situations with a lower risk of flame exposure, such as some workwear, household items like curtains, and specific types of outdoor clothing.
  • Limitations: flame retardant materials are not inherently flame-resistant. They can still ignite and burn, but at a slower rate. Additionally, the effectiveness of the treatment diminishes over time, requiring monitoring and potential replacement.

flame Repellent

  • Mechanism: flame repellent materials act as a barrier, repelling flames and liquids, preventing them from catching on flame and adhering to the fabric. This initial layer of defense can be crucial in delaying ignition and providing valuable seconds to escape a flame situation.
  • Materials: flame repellency is often achieved through topical treatments applied to various fabrics, including cotton and blends. Similar to flame retardant treatments, the effectiveness diminishes over time with wear and washing, requiring reapplication or replacement.
  • Applications: flame repellent clothing can be used in situations with a minimal flame risk, such as certain outdoor activities near campflames or for individuals working in low-risk environments where incidental contact with flames is possible.
  • Limitations: flame repellent materials are not flame-resistant and can eventually ignite or melt under sustained or direct flame exposure. Additionally, the repellency effect diminishes over time and requires regular reapplication or replacement.

Choosing the Right Option

Selecting the appropriate type of clothing, whether flame-resistant, flame retardant, or flame repellent, depends on the specific level of flame risk involved. It’s crucial to assess the potential hazards and choose clothing that offers the necessary level of protection. Remember, consulting with safety professionals and following relevant regulations in your industry or activity is essential for making informed decisions regarding flame safety and appropriate protective gear.

A Historical Spark: The Evolution of Flame-Resistant Pants

The history of flame-resistant clothing stretches back centuries, reflecting our continuous pursuit of safeguarding individuals from the perils of flames. While flame-resistant pants, as we know them today, emerged in the 20th century, their development was built upon earlier advancements in flame-resistant textiles. Let’s delve into the fascinating timeline of this essential protective gear:

Early Efforts (400 BC – 18th Century)

  • Ancient civilizations: The earliest recorded attempts at creating flame-resistant materials trace back to 400 BC. Egyptians and Greeks are known to have used natural flame retardants like alum and borax to treat fabrics, offering some level of protection against flames.
  • Medieval advancements: During the Middle Ages, advancements in fabric treatment with flame retardants continued. In Europe, knights and other individuals often wore garments treated with alum, saltpeter, and sometimes even clay to offer some protection against flame hazards during battles or sieges.

The Industrial Revolution and Beyond (18th – 19th Century)

  • Industrial dangers: The rise of the Industrial Revolution in the 18th and 19th centuries significantly increased the need for protective clothing for workers exposed to flame hazards in factories, foundries, and other industrial settings.
  • Chemical advancements: This period saw advancements in the use of chemicals for flame retardancy. Chemists like Joseph Louis Gay-Lussac in 1821 experimented with using ammonium phosphates and borax to treat fabrics, resulting in more effective flame-resistant properties.

The Birth of Modern flame-Resistant Pants (20th Century)

  • Early 20th century: The 20th century witnessed significant breakthroughs in the development of flame-resistant clothing. In the early 1900s, scientists began exploring the use of synthetic fibers with inherent flame-resistant properties.
  • The rise of Nomex® and Kevlar®: The invention of synthetic fibers like Nomex® in the 1960s and Kevlar® in the 1970s marked a turning point. These fibers, known for their exceptional flame resistance and durability, revolutionized flame-resistant clothing, including pants.
  • Standardization and regulations: The latter half of the 20th century saw the establishment of organizations like the National flame Protection Association (NFPA) and the development of standards and regulations for flame-resistant clothing used in specific occupations. This ensured consistent levels of protection for firefighters, industrial workers, and others at risk.

The 21st Century and Beyond

  • Continuous improvements: The development of flame-resistant pants continues in the 21st century. Ongoing research focuses on improving comfort, breathability, and durability while maintaining flame-resistant properties. Additionally, the exploration of sustainable materials and production methods for flame-resistant clothing is gaining traction.

The journey of flame-resistant pants, from ancient flame-retardant treatments to the advanced materials of today, reflects our commitment to protecting individuals from flame hazards. As technology and awareness evolve, we can expect further advancements in flame-resistant clothing, ensuring the safety of those who work and live in environments with potential flame risks.

Additional Information About Flame-Resistant Pants

Maintenance and care tips for flame-resistant pants

  • Follow the manufacturer’s washing instructions carefully. Improper washing can damage the flame-resistant properties of the pants.
  • Avoid harsh detergents, bleach, or fabric softeners as they can break down the flame-resistant chemicals.
  • Store the pants in a cool, dry place away from direct sunlight and heat sources to prevent degradation of the flame-resistant properties.
  • Regularly inspect the pants for signs of wear and tear such as rips, tears, or worn-out areas. Replace the pants when the flame-resistant properties diminish or if they become damaged.

Regulations and standards for flame-resistant clothing

Several organizations set standards and regulations for flame-resistant clothing, including:

  • National flame Protection Association (NFPA): NFPA develops and publishes various standards for flame safety, including standards for flame-resistant clothing used in specific occupations like flamefighting and welding. These standards specify performance requirements and establish rating systems for different levels of flame protection.
  • American Society for Testing and Materials (ASTM International): ASTM develops various technical standards, including some related to flame resistance of materials and clothing. These standards establish testing methods and performance criteria for flame-resistant materials.
  • Occupational Safety and Health Administration (OSHA): OSHA sets workplace safety standards and may require employers to provide flame-resistant clothing to employees in specific high-risk occupations. The specific requirements depend on the industry and potential hazards.

The Environmental Impact Of flame-Resistant Materials

The production of some flame-resistant materials, particularly certain synthetic fibers, can have an environmental impact. However, ongoing research and development are leading to the creation of more sustainable flame-resistant materials made from recycled content or bio-based materials.


flame-resistant pants are a vital component of personal protective equipment (PPE) in various high-risk environments. Understanding the different flame-resistant materials, the limitations of flame-resistant pants, and the factors to consider when choosing the right pair is crucial for ensuring safety and complying with relevant regulations. Remember, prioritizing flame safety and taking necessary precautions, including wearing appropriate flame-resistant clothing, can significantly reduce the risk of burns and injuries in high-risk situations.

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D.E. Gemmill: Empowering Safety

Equipping yourself with the right fire safety gear is crucial in mitigating risks and protecting yourself in potential flame hazards.

Here are some next steps to consider:

  • Conduct a thorough risk assessment: Evaluate your specific needs and the level of flame risk associated with your environment or activities.
  • Consult with safety professionals: Seek guidance from experts who can recommend appropriate flame-resistant clothing based on your individual needs and applicable regulations.
  • Explore reputable resources: Research and compare flame-resistant clothing options from various manufacturers and retailers, ensuring they comply with relevant safety standards.

For help finding the right flame-resistant pants, you’re in the right place. At D.E. Gemmill, we offer a vast range of flame-resistant clothing from the top PPE manufacturers. Questions? Feel free to contact us today.

Why Buy Your FR Pants from D.E. Gemmill Inc.?

D.E. Gemmill Inc. is your source for buying Rasco FR jeans online. We are proud to partner with the company and other trusted manufacturers to offer personal protective clothing at an affordable price. We carefully choose every item in our online store to ensure it meets our customers’ demanding standards.

Safety is something we live every day. In addition to retail sales, our team also provides contracting services to roadwork crews and other professionals. Explore our website to learn more about our expertise, or shop our selection of FR pants for sale online and don’t forget to check out our women’s line of FR clothing. When you shop with us, you’ll enjoy quick, reliable shipping and our outstanding return policy in case you’re not entirely satisfied with your purchase – order today!


high visibility clothing and halo hat worn by construction workers at night

D.E. Gemmill Inc. is your source online for safety apparel and traffic control products. Our online safety store is here to equip your team for the job.  Since 1986, safety has been our main priority. We understand the need for high-quality equipment that is priced to fit your budget and clothing that’s tough enough for demanding jobs.



Safety Apparel and High-Visibility Clothing

Safety apparel is a broad category of products that includes flame-resistant clothing, protective eyewear, hard hats, protective footwear and more. In a busy work environment where hazards are present, safety apparel is critical to preventing injury. Without it, a minor incident can quickly turn serious and lead to accidents with far-reaching consequences for both workers and employers.

D.E. Gemmill carries:


If you’re unsure what construction safety clothing and gear to buy in our store online, consider:

  • Safety standards. If your jobsite requires specialized apparel because there are moving vehicles or other heavy equipment, safety apparel can help your workers stay aware of one another.
  • Fit. Ensure your workers dress appropriately by supplying them with safety apparel that fits properly.
  • Color requirements. Neon colors help those on and off your jobsite be aware of your workers, whether on the highway or in a construction zone. Bright colors save lives.

If your business needs to order bulk quantities of safety apparel or you need to outfit your workers with more than one piece of clothing, get in touch with us. We can customize and deliver your safety apparel in the sizes and styles you need. And if you’re within 150 miles of our York, PA retail location, we can come to you with our Mobile Safety on Site (S.O.S.) truck.

The Mobile S.O.S. truck makes it possible for your workers to choose their own safety apparel. Talk to us ahead of time, and we can quickly stock the S.O.S. with all of the sizes, styles and colors your workers need to stay safe on the job.


traffic control light wand held in front of a road closed sign









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Traffic Control Products

Traffic control products for sale at D.E. Gemmill Inc. include light bars, flares, wands, warning lights, temporary traffic control signs, sign stands and more. These and related products help roadwork crews do their jobs safely and efficiently.

Investing in reliable equipment not only helps avoid accidents. It also improves employee morale and productivity while keeping traffic flowing smoothly. Search our online store for products such as:


D.E. Gemmill has experts ready to help you choose the right products. As experienced contractors, we don’t just sell safety equipment — we use it ourselves every day. So, if you’re not sure what to order, just ask! We can review your job requirements and help you choose the traffic gear that’s right for you.

Fall Protection Equipment

fall protection equipment used by a worker in an industrial setting

Ensure your jobsite and workers comply with OSHA regulations and prevent unnecessary injury with our fall systems, designed to keep your workplace as safe as possible. If you work in roofing, construction, utilities or another industry that requires working at heights, it’s in your best interest to use the fall protection gear that will protect you, your workers and your business.

At D.E. Gemmill, we carry:

  • Full-body harnesses
  • Lanyards
  • Carabiners
  • Snap hooks
  • Prevention barriers and other OSHA-compliant fall protection equipment

If you don’t see the work zone traffic control products you need at our online store, stop by our York, PA retail location. We’re conveniently located for customers in Pennsylvania, Maryland, Delaware, New York, New Jersey and Virginia. You or your workers can come in, view our selection and try on the equipment that will make your jobsite safer and OSHA compliant.

Follow the links on the left to browse the main sections of our online catalog. You can also contact our office directly for assistance. Alternately, if you’re in the Central PA area, visit our safety store retail showroom in York for a more hands-on experience.


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There are several considerations that will impact your choice of safety apparel and traffic control products. The first is the condition of your job site. Will workers be exposed to heat, flames or electricity? Will they be working outside or among moving vehicles? Will they be required to go into confined spaces or areas where visibility is poor? What about corrosive liquids and chemical fumes?

Ultimately, you know your business better than anyone and can determine which products are necessary to ensure a safe working environment. At D.E. Gemmill, our safety apparel is rated Class 2 or Class 3, so you can be sure to get the clothing that’s appropriate for your job site’s specific hazards.

When buying traffic control products or safety apparel, you also need to know you’re getting the best value for your money. Choosing a durable product that will deliver on its promises requires doing your research ahead of time and working with an experienced supplier. D.E. Gemmill Inc. carries items by leading brands such as Rasco FR, ML Kishigo, Ariat, GSS, Aervoe and others — manufacturers whose products we know and trust. Get in touch with a representative for help choosing the best items for your needs.


For over 34 years, D.E. Gemmill has built a reputation for providing outstanding products and services to businesses in the construction and paving industry. We’re contractors, too, so we understand the products you need to get your job done safely.

Expert advice is only one part of what sets D.E. Gemmill Inc. apart from other traffic control and safety apparel suppliers. We also offer fast, reliable shipping to customers across the country as well as an exclusive return policy that guarantees your satisfaction. We carefully select all items on our online store to ensure they meet the high demands of our clientele. As a result, it’s easy to shop online with confidence.

If we don’t have what you’re looking for in stock, our team can either recommend an alternative or source it from one of our partners. For years, we have specialized in helping businesses with unique safety requirements find the apparel and other solutions they require.

At D.E. Gemmill, your safety is our business. For more information about our products or to purchase online, contact us today. If you are in the Central PA area you can visit our safety apparel store near you today!

Tim Sullivan
Tim Sullivan
Large selection and staff was amazingly helpful. Highly recommend!!!