Choosing the best fire-resistant fabrics is essential to creating a safe environment for your employees. Especially in high-risk industries, where occurrences such as arc flashes, fires, and chemical exposure are a part of the daily deal, protective clothing needs to be a priority. But are inherent FR fabrics the best option for your team?
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This article will cover the durability, protection, and investment value of inherent FR fabrics to help you make the most informed decision when it comes to the safety of your team.
What is the difference between inherent FR and FR treated?
Inherent FR fabrics refer to any fabric that is produced with fiber that holds intrinsic fire retardant properties. These inherent FR properties are never worn down or washed out as they are part of the raw material the fabric is made of.
FR-treated fabrics, on the other hand, obtain their fire-resistant properties from chemical treatments that are applied to fabrics after they have been made.
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We created a quick guide to cut through the confusion on flame-resistant fibers and fabrics. Our one-page reference guide covers some of the most common fabrics and fibers used in flame-resistant PPE garments.
Which industries are best suited for Inherent FR fabrics?
There are several professionals that are required to wear FR clothing due to the high-risk industries they work in, including:
However, many other industrial and maintenance professionals can also benefit from inherent FR fabric protection, such as:
Electricians
Industrial food processing staff
Paper processing personnel
Chemical plant employees
Manufacturing technicians
While it is true that many of these workers may never be exposed to hazards on a day-to-day basis in their industries, the risk of exposure does exist. In both cases, it is crucial to minimize risk by wearing suitable protective clothing.
What does Inherent FR mean for the wearer?
The greatest benefits of inherent FR fabrics, for the wearers and businesses alike, lie in durability.
- Physical durability:
As the FR properties are an intrinsic part of the fibers themselves, the fabric retains its integrity.
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Protective durability:
Inherent FR fabrics generally provide better protection at a lighter weight for improved comfort.
Aesthetic durability:
Inherent FR fabrics maintain their color and do not shrink over time, simplifying their maintenance and care.
Investing in inherent FR fabrics
In general, inherent FR fabrics can prove to be a more valuable investment in the long run. However, they are more expensive. Their higher price is due to the fabric’s long-term durability, quality, and comfort qualities. When weighing the increased costs against the long-term durability, the investment value is clear.
Making the Right Choice
There are many FR fabrics available in the market and making the right choice comes down to analyzing industry-specific requirements. Ultimately, both inherent FR and FR-treated fabrics offer reliable protection against fire-related risks and hazards.
What’s the difference between FR-treated and inherent FR fabric?
Two types of fabrics typically serve the market for flame-resistant protective clothing. These typical fabrics are:
- Inherent FR or
- FR-treated
But what do these terms mean, and is there a difference? Simply put, inherent FR implies that the fibers used in the fabric are naturally flame resistant - like aramids and modacrylics.
FR-treated means that the flame-resistant property is a result of a chemical treatment that is applied to the fabric.
How do FR chemical treatments work, and when are FR-treated fabrics a good choice?
FR chemical treatment dates back to the introduction of Proban® by Solvay back in the 1950s. Some of the earliest applications of Proban® treated cotton fabrics were in children's nightwear. Nowadays, several chemical suppliers can make this chemical called 'THPC chemical.' THPC is a durable flame retardant treatment for cotton and other cellulosic fibers and blends. Durability is achieved by the formation of a cross-linked inert polymer within the fiber, which makes sure the FR properties won’t be washed out.
Get the Quick Reference Guide to FR Fibers and Fabrics
We created a quick guide to cut through the confusion on flame-resistant fibers and fabrics. Our one-page reference guide covers some of the most common fabrics and fibers used in flame-resistant PPE garments.
Performance improvements along the way
It's, of course, significant that this chemical treatment can turn cotton, which is a relatively cheap fabric, into a fabric with flame retardant properties. And its cost-effective positioning has turned this fabric into a mainstream solution used in protective FR clothing.
While it all started with 100% cotton fabrics, different blends were introduced to add specific characteristics to the fabric, like better mechanical performance, lower shrinkage, and better color fastness.
Benefits of FR-treated fabrics for different industrial markets
- As discussed previously, a prominent benefit is that it is a more cost-effective option for protective clothing.
- FR-treated fabrics offer excellent protection against molten metal splashes. For this reason, in many steel & metal environments, protective clothing made with FR-treated fabrics is the standard solution.
- In the case of welding, this fabric is the only textile fabric that can achieve decent protection levels comparable to leather.
- Next to the protection against flames and molten metal splashes, the chemical treatment also gives these fabrics adequate performance in arc flash protection. This is why markets like utilities and oil & gas use FR-treated fabrics.
Side Effects of FR-treated fabrics
Cotton is a well-known fiber and is widely regarded as comfortable — since we use this a lot at home. Thanks to the chemical treatment, there are excellent protection features added to cotton, but there are also downsides to choosing FR-treated fabrics:
- When washed regularly, which is often required in industries that use protective clothing, cotton-based fabrics tend to lose their color quickly, giving the fabric a white-washed effect over time.
- Extra care is needed during the washing process, and specific soaps and detergents should be used in combination with the correct temperatures during washing.
- If bleach is used, this will affect the FR-property of the fabric. Most companies that provide protective clothing to their workers make use of an industrial laundry service contract to ensure proper washing instructions are followed and continued protection is guaranteed. Some FR-treated fabrics are still in use over 50 industrial cleaning cycles.
- The garments will get to a point where they are too dirty to wash again and, in some cases, may need to be replaced often.
Is FR-treated fabric a good choice? Well, it's all about preferences
Ultimately, there is no such thing as bad FR fabrics. They all have to meet the specifications they claim to protect professionals against. Therefore, when choosing protective clothing, it more comes down to elements like color fastness, comfort, industrial launderability, the cost, and the importance you give to each of these elements to define what suits you best.
We know there are many options for protective clothing available in the market and that it can be challenging to make the right choice. Our experts in FR-fabrics are, therefore, more than happy to guide you on which option is best for your workforce. Get in touch and make an appointment with us today.
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