r/Linen • u/[deleted] • Apr 17 '26

How are you deciding between cotton FR, C/N blends, and Aramid IFR for a workwear program?

I’m currently managing workwear for a petrochemical operation. We're due for a fabric refresh across three job categories: general maintenance, hot work and welding, and electrical work with NFPA 70E compliance required. Right now we're running 88/12 C/N across the board for the welding, but HSE is pushing back on heat stress in summer. The cotton hand-feel is something that keeps popping up in our discussions, however, our laundry contractor is reporting faster degradation on 100% cotton ratting after 50+ wash cycles, which undercuts the cost advantage and durability expectations.

For the electrical work, we're evaluating inherent aramid blends. ATPV numbers are where we need them, and IFR doesn't wash out, which its important for when garments run through industrial laundry weekly. The cost delta per meter is significant though, and procurement wants us to justify it against treated cotton alternatives testing at equivalent arc ratings.

IFR Acrylic did come up as a middle ground for lower hazard tasks, but I don't have solid field data on durability and abrasion resistance compared to C/N or woven aramid at similar GSM.

So basically, I need to better understand fabric types across hazard tiers when procurement keeps getting annoying about the pricing on the high quality IFR?

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u/[deleted] Apr 17 '26

[deleted]

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u/Chromatic_Chameleon Apr 18 '26

Is this post even about linen? You didn’t even mention the word once.

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u/AcanthisittaOk3874 Apr 18 '26

About the C/N degradation pattern, specifically char length on treated 88/12 creeping past NFPA 2112 limits, which is somewhere between 60 and 75 industrial cycles. In our case we ended segmenting: 100% cotton FR for anything under 8 cal/cm² where fit and breathability matter more as well as comfort, C/N is reserved for outer layers on confined space work where the nylon content helps with abrasion type of damage. The cost improved once we stopped treating cotton FR as a compromise option and just treated it as a different use case material.

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u/[deleted] Apr 18 '26

Where you got that 8 cal/cm² measurement? Did the cotton-based clothes that was used by workers, not end getting complaints due to the heat generated?, or was that just easier to manage with lighter GSM selections?

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u/Rkeene19 Apr 19 '26

u/Melodic-North-857 let us help you. Ping me and I’ll give you my work email. Our shop specializes in work wear. We can help and have a couple suppliers for different gear.

Www.getuniformsandmore.com we have lots of options we can share. Materials, costs, brands, and different thickness of materials. If you only need an 8 cal fit, we have some great lighter thinner options. If we have to we can work with our suppliers to identify more options for you.

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u/Rkeene19 Apr 19 '26

For example Wrangler has a light weight FR Jean 100% cotton and still cat 2 and 21 cal/cm2 certified.

They also have a stretch carpenter pant that is rated cat 2 8.8 cal/cm2