Thoughts on Carbon Fiber

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Kody
Kody
QLD
190 posts
QLD, 190 posts
3 Apr 2008 10:25pm
There is a lot of Carbon Fiber (CF) used throughout all sections of engineering. I have used it in making my wing spars and reinforcing wing panels and within the fusulage of aircraft. I will never use this stuff again. There are huge problems with CF that not many people realize. A classic example is when the CF breaks. The CF will in many cases disintergrate creating hundreds of needle sharp slivers and splinters. I had a photo (lost it now) of an index finger that had a splinter of CF that penetrated deep into the digit. The tissue surounding the splinter kept growing over the foreign body to try and isolate it. The result was a large "digit" growing on top of the index finger. It was exceedingly gross! A splinter should be removed by a doctor who knows what this stuff is about. I believe the correct procedure is to excise the splinter with the surounding tissue. Never try and remove a splinter with tweezers when the end of the splinter is visible. It will definitely break off and leave some or most of it still imbedded.
Sanding this stuff is akin to working with aspestos and sets you up for meseothelioma. The danger of injury from a broken CF spar or mast deletes CF from my workshop now and forever. The diameter of the splinters is extremely small which makes the stuff very hard to see. The people who have suffered most in the sporting world with CF are the archer fraternity. They use CF arrows that shatter from unseen cracks after the arrow has hit a hard object and is fired again from the bow. The sudden force on the arrow shaft when released from the bow has shattered the shaft and injured many people, some of them very seriously. If you decide to use this stuff, PLEASE take EXTREME care when you handle it or make repairs with it or to it.

Kody
hills
hills
SA
1622 posts
SA, 1622 posts
3 Apr 2008 11:06pm
That's very interesting! Does fibreglass have the same issues as that is even more extensively used.
Kody
Kody
QLD
190 posts
QLD, 190 posts
3 Apr 2008 11:21pm
Hi Hillsie
Glass Fiber is the same but different. Those who work with it are fully covered and use a respirator. GF is at its worst when it is being sanded or cut with a grinding wheel. I believe that repeated exposure can also cause mesotheliomo, I think its called "Glass lung". I hate working with the stuff but I will do it. The worst seems to be when you are cutting the excess away after its cured and you get those glass slivers stuck into your hand etc. They are so hard to see as they take on the same colour as the skin etc. And doesnt that glass "sand dust" make you itch all over and hurt.

Kody
Sandflyer
Sandflyer
SA
48 posts
SA, 48 posts
4 Apr 2008 1:13am
And dont those glass fibres always seem to have barbs, making them painfull and difficult to remove.

When I build GRP kayaks or perform boat repairs, we are pretty careful about dust and airborne fibres. Kody, when possible we trim before the full cure, when can still use sharp knife or scissors. Just be careful Hills , take usual precautions and you should be OK to use this stuff short and long term.

I dont know about you but fumes of that type, some solvents, (acetone, triclor, tole) seem to cause me to generate more gas, not necessarily stinky just more of.

I have unfortunately been witness to a couple of friends, contract and pass from meso, not a pretty sight. Painfull but sort of mercifully quick some times, Geoff was a chippy, so exposed all working life, took nearly 5 years to claim him. Was going to see the doc in Perth that all the authorities reckon was a quack (went to Scotland), gave Geoff about 3+ years more than otherwise. Di, exposure was insignificant, in about '63 in a retail store, claimed her in 12 months about 3 years ago.

The average time from dignosis to death from meso is 156 days, yeah 6 months!
cisco
cisco
QLD
12365 posts
QLD, 12365 posts
4 Apr 2008 12:44am
You have that right there Kody with those two "wonder" products.

I think it is a matter of "wondering" how long it will be before this stuff kills me.

Worked at the Gladstone Power Station where they used fibre glass mat as the gasket in the joins in the hot air chamber. We're in a confined space drilling through this stuff and they are telling us that all we needed was a paper mask.

Workplace Health and Safety, what a joke!!![}:)]
Sandflyer
Sandflyer
SA
48 posts
SA, 48 posts
4 Apr 2008 1:17am
Hey Cisco you should have worked 500 metres underground at Roxby Downs in the early days. "OHS is an issue when it suits us" quote WMC

They would hang the bastards today!
cisco
cisco
QLD
12365 posts
QLD, 12365 posts
4 Apr 2008 12:50am
I should NOT have worked there and I am glad I didn't!!
landyacht
landyacht
WA
5921 posts
WA, 5921 posts
3 Apr 2008 10:58pm
there is a photo they use in Kalgoorlie in Safety Inductions showing some blokes in the early 80's standing under an excavator ,clearing a collapsed wall in an open pit. the safaty instructor explained how dangerous it all was and the precautions they take today. they toldus that the blokes in the singlets with no ear or eye protection would be physical wrecks today.
2 of us in the room put our hands up and said " NO mate we're fine , but the bloke on the left if really fat nowfrom sitting in a office writing safety reports!"
I'm glad they dont have photos of us riding down into old stopes in the buckets of excavators
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