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Old 10-08-2006, 05:09 PM   #1
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Default Safety tips when dealing with carbon fiber

Any thing i should look out for???I'm gonna cut a CF chassis for my custom made project
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Old 10-08-2006, 05:20 PM   #2
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Quote:
Originally Posted by ntc3freak
Any thing i should look out for???I'm gonna cut a CF chassis for my custom made project
A good dust mask, you don't want to be breathing in that stuff, and be carefull of splinters.

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Old 10-08-2006, 05:27 PM   #3
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Quote:
Originally Posted by Skiddins
A good dust mask, you don't want to be breathing in that stuff, and be carefull of splinters.

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i read that i should cut it under running water.true or false???would be hard to cut if i had to do it under running water.
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Old 10-08-2006, 05:34 PM   #4
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After doing awhole lot of 1/12th scale parts recently on a CNC machine, I had no problem cutting dry. Just make sure you have a vacuum with a good filter to get rid of the dust. Also it does put off little particles of resin in the air that you will sooner or later start to itch on your arms or any exposed area. As far as cutting with water, to each there own. I want to make sure that I can see what I'm cutting.
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Old 10-09-2006, 03:33 AM   #5
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Having worked with Carbon fibre for many years in the aeorspace industry I can give you the following advice, for the home user.

Get the best dust mask you can afford, (not the crappy paper ones)
Get eye protection goggle type not glasses
Run a dust extraction system, vacum cleaner with the nozzle pointed to where you are working 2-3" distance is ideal for the home user, just dont let the wife see
Any dust residue, wet dust to get rid of, dont dry wipe.
And wear gloves.

Hope that helps dude
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Old 10-09-2006, 03:42 AM   #6
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Don't cut it wet, cf is hydroscopic.
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Old 10-10-2006, 12:07 AM   #7
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how itchy is it??? should i cut it outside then???
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Old 10-10-2006, 12:41 AM   #8
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I work at tap plastics....and we sell a LOT of fiberglass mat....let me tell you, simply unrolling that stuff makes my arms itch like a MOFO! wear a long sleeve shirt and some gloves while transporting it.
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Old 10-10-2006, 06:45 AM   #9
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Quote:
Originally Posted by eforer
Don't cut it wet, cf is hydroscopic.
i checked the dictionary for hydroscopic and couldnt find the word.

can you please re-explain why you shouldnt wet cf when working with them?

i actually built a new chassis kit the other week and i was filing my batt slots under a tap to contain all the cf dust.
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Old 10-10-2006, 07:21 AM   #10
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hygroscopic
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Old 10-10-2006, 08:32 AM   #11
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Old 10-10-2006, 04:17 PM   #12
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Quote:
Originally Posted by BrainTeased
i checked the dictionary for hydroscopic and couldnt find the word.

can you please re-explain why you shouldnt wet cf when working with them?

i actually built a new chassis kit the other week and i was filing my batt slots under a tap to contain all the cf dust.
Even though the word "hydroscopic" is not entered into the Oxford English Dictionary, it seems to be commonly used in place of the word "Hydrophobic" which mean "tending to repel or fail to mix with water".

I think what what BrainTeased was tying to say is that the water will not remove all of the particals when cutting Carbon Fibre. I personly do what my fellow countryman Mi2_Tastic suggested. Its always better to be safe than sorry.....

By the was Hygroscopic means the oposite to hydrophobic, i.e. it absorbs water into its structure, i.e. silica gel........

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Old 10-10-2006, 04:32 PM   #13
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I work for an aerospsce R&D company. We machine large pieces of composites. If at all posibble wet the material down. Recently, we cut a large carbon penolic object. The point of operation was continously covered with flowing water. The machine operator used a Tyveck suit, half face respirator, gloves and chemical goggles. We had a indutrila hygenist take samples thourghout the operaton. No detectable amounts of dust were detected.
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Old 10-10-2006, 07:46 PM   #14
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when i sand my chassis, i do it wet under cold runing water.. no duct period.. no ill efect on the CF either.. ive done it for years,..

Ive also cut alot fo stuff.. If your arms do manage to itch, make sure when you wash them you use cold water.. warm or hot water opens the pores on your skin, and the dust goes deeper.. ive tred it and it works.. i

i use a msk
wear some sort of rubber gloves.
i got a wleding suit from work to cover my arms and clothing
and i also wear a hat.. i look like im ready for a snowbal fight.. but it keeps you from itching or breathing in bad stuff..

Ive also found a dremel is the worst for cutting.. it throws al the dust into the air.. for large stuff i use a small table jig saw.. get a super fine bit, or use a cable type.. it work much better and it pulls the dust down, and its easier to hook a vacume to..
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Old 10-10-2006, 08:57 PM   #15
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Quote:
Originally Posted by bs6ef
Even though ...
By the was Hygroscopic means the oposite to hydrophobic, i.e. it absorbs water into its structure, i.e. silica gel........
wait a sec chum, I just trying to list the correct word.
And actually efoer said "Don't cut it wet, cf is hydroscopic". Which he seems to imply that cf absorbs water? (which I don't belive it does) with the words "Don't cut it wet". I mean it really does not make sense to infer he meant "Don't cut it wet" ..it repels water...No, I don't think so. So I thought it was just a typo of of the word hygroscopic not hydroscopic (form of the word hydroscope, which is "an optical device for viewing objects below the surface of water" which really makes no sense at all). SO I listed that word only for BrainTeased reference. But I agree with you in that cf is not hygoscopic but infact has the effect of hydrophobicity.
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