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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 05-23-08, 03:57 PM   #1
xiamsammyx
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Carbon Fiber warning

I'm too lazy to actually source the original report but there was a discussion going on on NPR this afternoon saying that the nano technology in carbon fiber is almost identical to that of asbestos therefore when being cut/sanded/worked with it is theoretically just as dangerous as inhaling asbestos and is likely a huge cancer risk. so anyone choping/sanding/mutilating anything carbon fiber you may want to invest in a high end respirator since even normal dust masks will do little to stop the nano particles from entering your lungs.

anyone else here about this?
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Old 05-23-08, 04:10 PM   #2
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Aluminum dust is also pretty bad for your body. Alzheimers anyone?
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Old 05-23-08, 04:11 PM   #3
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any bike mechanic knows this. I usually wear a dust mask when I cut carbon steer tubes. admittedly, a lot less dust is kicked up in cutting a steer tube than installing insulation in a building... between printmaking (acids and pine resin), metal working (mig welding anyone?), and bicycle mechanics, I have a habit of falling into professions that involve a lot of health risks. at least im not inhaling pig brains.
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Old 05-23-08, 04:13 PM   #4
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any bike mechanic knows this. I wear a dust mask when I cut carbon steer tubes.
nano = smaller than dust
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Old 05-23-08, 04:13 PM   #5
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I didnt know it. I cut mine and breathed in deeply .
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Old 05-23-08, 04:13 PM   #6
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that's good to know. i didn't know that.
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Old 05-23-08, 04:15 PM   #7
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I didnt know it. I cut mine and breathed in deeply .


lmao
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Old 05-23-08, 04:16 PM   #8
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Use some common sense and you'll be fine. Wrap whatever you're cutting in electrical or duct tape first and then cut through the tape. That'll keep the dust down. Put some water or cutting fluid on it if you're really worried. Do it outside. Have a fan blowing away from you while you cut. Don't be a ****. These are all options.
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Old 05-23-08, 04:17 PM   #9
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im a little more concerned with carbon splinters on broken frames. that stuff hurts like crazy.
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Old 05-23-08, 04:27 PM   #10
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+1 for carbon splinters, i got one when my spinergy broke
D:
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Old 05-23-08, 04:29 PM   #11
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the news you are referring to is about carbon nanotubes, not carbon fiber. although i'm sure there are plenty of risks to cutting carbon fiber, the similarities to asbestos were found with nanotubes.

http://www.npr.org/templates/story/s...oryId=90769120

i'm pretty sure carbon fiber bike components do not use nanotubes, but i could be wrong.
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Old 05-23-08, 04:35 PM   #12
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easton is all about the nanotubes.
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Old 05-23-08, 05:16 PM   #13
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I'm too lazy to actually source the original report but . . . .

this is how rumour, misinformation and speculation spread, if you can't be bothered to report a genuine heath risk with some degree of accuracy I wouldn't bother.

For those who would like to look into this, the theoretical risk is specifically from Carbon Nano Tubes (CNTs) and not per se from carbon fibre, carbon fibre carries it's own safety concerns, these have not changed and carbon can be worked safely with the right procedures.

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Old 05-23-08, 05:18 PM   #14
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yeah i was going to say i had heard that it was nanotubes.

i just didn't know whether CF had nanotubes or not.
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Old 05-23-08, 05:26 PM   #15
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nanotubes are different; currently being studied for electrical conductivity purposes.

carbon fiber utilizes carbonized filaments covered in resin.

i'm sure though, that either way, breathing in the particulate matter from either is bad news.
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Old 05-24-08, 12:03 AM   #16
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resin-covered carbonized filaments

don't breathe this
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Old 05-24-08, 08:53 AM   #17
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I cut mine with baby laxative.
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Old 05-24-08, 09:01 AM   #18
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Aluminum dust is also pretty bad for your body. Alzheimers anyone?
http://www.straightdope.com/classics/a1_216a.html - a good read.
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Old 05-24-08, 09:22 AM   #19
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resin-covered carbonized filaments

don't breathe this
only funny post in this thread.
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Old 05-24-08, 09:41 PM   #20
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Aluminum dust is also pretty bad for your body. Alzheimers anyone?

Better stop using antiperspirant then, it contains aluminum and has been linked to Alzheimers as well. If you eat or breathe in this world your doomed. Facts of life.
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Old 05-24-08, 10:10 PM   #21
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Google search Nano-tubes

They are speaking of carbon nano-tubes, and not the form that is used in bicycle construction.
BTW, we are all dying, it's just a matter of how quickly.

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Old 05-24-08, 11:14 PM   #22
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Originally Posted by xiamsammyx View Post
I'm too lazy to actually source the original report but there was a discussion going on on NPR this afternoon saying that the nano technology in carbon fiber is almost identical to that of asbestos therefore when being cut/sanded/worked with it is theoretically just as dangerous as inhaling asbestos and is likely a huge cancer risk. so anyone choping/sanding/mutilating anything carbon fiber you may want to invest in a high end respirator since even normal dust masks will do little to stop the nano particles from entering your lungs.

anyone else here about this?
I like how you're telling this to a bunch of kids who ride around without brakes and helmets as if they actually care.

Good one.
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Old 05-25-08, 01:42 AM   #23
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great I work with Aluminum, Carbon Fiber, and Aluminum everyday at work and just wear a crappy mask when I am actually doing long work in the composit room and usually nothing when it's adjustment work mounted on the job. I'm gonna die soon anyone want my crap?
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Old 05-25-08, 02:43 AM   #24
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cigarettes cause cancer when you breathe them, too

i was going to microwave something on a styrofoam plate and she was like "no dont do that, it's going to give you cancer"

and i was like "didn't you just smoke 3 cigarettes within the last hour?"

nothing against smoking/ers, it's just funny

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Old 05-25-08, 07:43 PM   #25
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Life causes cancer. Stop living.
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