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Originally Posted by NiklasFalk
(Post 1160897)
It's not the thought of sweat coming from the skin due to the fire, it's the bodily juices absorbed by the Nomex layers prior to the fire that get vaporized and can steam boil your ass.
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Leafy, you don't need to wear a firesuit around the parking lot. Stop being a tryhard.
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Originally Posted by Dunning Kruger Affect
(Post 1160911)
Leafy, you don't need to wear a firesuit around the parking lot. Stop being a tryhard.
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Originally Posted by unk577
(Post 1160884)
Not sure if I agree with this statement. Can you provide a link supporting it?
At a temp that will cause the skin to begin to break down sweat should be evaporating very quickly. Structural fire fighting gear is multi layer and does a pretty good job of protecting you(until someone compresses those layers eliminating any air gap and burning you ie: a pat on the back can leave a nice red hand shaped tattoo) there seems to be a overestimation of the amount of protection you get and underestimating the temperatures achieved in the middle of a fire. layering up your suit will only make you sweat more. the more liquid on your suit the better and faster the heat transfer. ever wonder why you can cook a sausage in boiling water in 8 min but on a grill it takes 10. or when you solder wire it works faster if you load up the tip of your soldering iron. same theory, liquid transmits heat faster. Liquid will help the heat transmit threw your suit. In a fire, you're reaching serious temperatures. depending on what's burning your in the middle of 4,000 - 9,000*. FYI water boils at 212*.
Originally Posted by NiklasFalk
(Post 1160897)
It's not the thought of sweat coming from the skin due to the fire, it's the bodily juices absorbed by the Nomex layers prior to the fire that get vaporized and can steam boil your ass.
But I'd argue that it also depends on the size of the fire. 10 seconds engulfed in a fireball until you get out is what's imagined when testing, but that is not the only type of fire (ankles, wrists, neck are often the worst places, tight layers but not much sweat collected there). But even in the worst case decent gear will increase you chance of survival, but I would not expect to just dust off the charred suit, go to the pits, put on the extra set of gear and use the spare car for the next heat. "the ankles, wrists, neck are often the worst places, tight layers but not much sweat collected there". a lot of sweat is collected in the tightest clothing area. also remember those areas can become exposed to open flame by gaps in the clothing. overlay overlay overlay. make sure your gear is tucked in! |
What will protect you is air space between you and your suit. The wrist and ankles are two places where the cuffs can be tight and have pressure on your skin, transferring heat as the material heats up.
What will kill you long before the burns will is that first breath of super heated air that cooks your lungs and prevents any further oxygenation of your blood. |
Originally Posted by unk577
(Post 1160973)
What will protect you is air space between you and your suit. The wrist and ankles are two places where the cuffs can be tight and have pressure on your skin, transferring heat as the material heats up.
What will kill you long before the burns will is that first breath of super heated air that cooks your lungs and prevents any further oxygenation of your blood. remember that elastic melts. so your undies you got from target are 100% cotton (cotton is good) except for the elastic waist band. same goes for socks. If you don't have nomex underwear you'll want cotton with no logos. the logo is sometimes screen printed and that will melt too. |
Originally Posted by OGRacing
(Post 1161121)
Absolutely. The movie rush displayed Niki lauda's incident to the T. It's good to have a good fire system and a good suit. remember that elastic melts. so your undies you got from target are 100% cotton (cotton is good) except for the elastic waist band. same goes for socks. If you don't have nomex underwear you'll want cotton with no logos. the logo is sometimes screen printed and that will melt too. |
Originally Posted by Ryan_G
(Post 1161123)
So an under armor type umderlayer is a bad idea?
Nomex or cotton under garments or bust |
Originally Posted by Ryan_G
(Post 1161123)
So an under armor type umderlayer is a bad idea?
Froot-of-the-loom white cotton undershirts are the best/cheapest |
Originally Posted by Efini~FC3S
(Post 1161125)
Yes, terrible terrible idea.
Nomex or cotton under garments or bust
Originally Posted by OGRacing
(Post 1161130)
:eek: OMG don't do that :eek:
Froot-of-the-loom white cotton undershirts are the best/cheapest Men’s UA Tactical Fire Retardant Short Sleeve Shirt | 1236389 | Under Armour US Not the cheapest option but I find myself to be far more comfortable in that type of clothing than I ever am in a normal cotton shirt. Food for thought. |
Originally Posted by Ryan_G
(Post 1161132)
I just did a little research. Under Armour and a few of its competitors do make nomex gear for use under other first suits.
Men’s UA Tactical Fire Retardant Short Sleeve Shirt | 1236389 | Under Armour US Not the cheapest option but I find myself to be far more comfortable in that type of clothing than I ever am in a normal cotton shirt. Food for thought. |
Originally Posted by Leafy
(Post 1160914)
I do own a lemons car you know.
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Originally Posted by Sandro351
(Post 1161136)
1/32th of a lemons car*
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Carbon-X is a nomex type material that acts like underarmor it feels so amazing on the skin. You will pay a premium over nomex though. For comparison, a normal nomex dead sock is like $30, a carbon-x one is like $75.
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Originally Posted by OGRacing
(Post 1161138)
that's like 1 lugnut, a brake rotor and 3 bars in the cage.
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Under armor has had that fire retardant stuff on the market for a few years now. Haven't seen it go FIA yet. There's alot of military spec stuff out there and just like the lemons rules say, it may be superior but it's not fia/sfi. Just get a good 2 layer suit. The sfi 3.2/A5 is what I have and it's great for if you want to wear cotton under it. Nomex head sock and socks.
Spend the money or look like Nikki Lauda. |
2 Attachment(s)
Originally Posted by Sandro351
(Post 1161145)
Under armor has had that fire retardant stuff on the market for a few years now. Haven't seen it go FIA yet. There's alot of military spec stuff out there and just like the lemons rules say, it may be superior but it's not fia/sfi. Just get a good 2 layer suit. The sfi 3.2/A5 is what I have and it's great for if you want to wear cotton under it. Nomex head sock and socks.
Spend the money or look like Nikki Lauda. The flight suits can make for a good track day suit if you rock some Nomex underwear. I dont know what Nomex leafy is comparing the carbon X too, but I highly Doubt it's nicer than a nice set of Sparco Nomex underwear. https://www.miataturbo.net/attachmen...ine=1409064669 http://www.ogracing.com/sparco-pro-t...-nomex-t-shirt |
Perfect timing as we talk about undershirts!! Track gear just released this video, their shirts just got a ******. you can clearly see the Polyester shirts melting. EDIT ***** The shirts are not SFI rated, the material used to make them is SFI fire rated... but the shirts are not..*** |
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