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-   -   Carbon Fiber warning (https://www.bikeforums.net/singlespeed-fixed-gear/421603-carbon-fiber-warning.html)

xiamsammyx 05-23-08 03:57 PM

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?

andre nickatina 05-23-08 04:10 PM

Aluminum dust is also pretty bad for your body. Alzheimers anyone?

onetwentyeight 05-23-08 04:11 PM

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.

cc700 05-23-08 04:13 PM


Originally Posted by onetwentyeight (Post 6749772)
any bike mechanic knows this. I wear a dust mask when I cut carbon steer tubes.

nano = smaller than dust

Ride Among Us 05-23-08 04:13 PM

I didnt know it. I cut mine and breathed in deeply .

MIN 05-23-08 04:13 PM

that's good to know. i didn't know that.

cc700 05-23-08 04:15 PM


Originally Posted by Ride Among Us (Post 6749783)
I didnt know it. I cut mine and breathed in deeply .

:twitchy:

lmao

Nims 05-23-08 04:16 PM

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.

onetwentyeight 05-23-08 04:17 PM

im a little more concerned with carbon splinters on broken frames. that stuff hurts like crazy.

dervish 05-23-08 04:27 PM

+1 for carbon splinters, i got one when my spinergy broke
D:

zip22 05-23-08 04:29 PM

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.

onetwentyeight 05-23-08 04:35 PM

easton is all about the nanotubes.

tynan 05-23-08 05:16 PM


Originally Posted by xiamsammyx (Post 6749698)
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.

cc700 05-23-08 05:18 PM

yeah i was going to say i had heard that it was nanotubes.

i just didn't know whether CF had nanotubes or not.

Cheshyre 05-23-08 05:26 PM

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.

thequickfix 05-24-08 12:03 AM

resin-covered carbonized filaments
http://ticklebooth.com/wp-content/up.../07/iphone.jpg
don't breathe this

filtersweep 05-24-08 08:53 AM

I cut mine with baby laxative.

bionnaki 05-24-08 09:01 AM


Originally Posted by andre nickatina (Post 6749768)
Aluminum dust is also pretty bad for your body. Alzheimers anyone?

http://www.straightdope.com/classics/a1_216a.html - a good read.

peabodypride 05-24-08 09:22 AM


Originally Posted by thequickfix (Post 6751917)
resin-covered carbonized filaments
http://ticklebooth.com/wp-content/up.../07/iphone.jpg
don't breathe this

only funny post in this thread.

wheelsucker 05-24-08 09:41 PM


Originally Posted by andre nickatina (Post 6749768)
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.

Allen 05-24-08 10:10 PM

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.

http://www.technicalstew.info/main/2..._nanotubes.gif

neverjared 05-24-08 11:14 PM


Originally Posted by xiamsammyx (Post 6749698)
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.

Live2Die 05-25-08 01:42 AM

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?

tx_what_it_do 05-25-08 02:43 AM

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

Gordo789 05-25-08 07:43 PM

Life causes cancer. Stop living.


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