fibreglass vs carbon - Corsa Sport - for Vauxhall and Opel Corsa B, Corsa C and Corsa D

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taylorboosh

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Registered: 3rd Apr 07
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9th Aug 11 at 16:58

is fibreglass the cheap mans carbon?

which is lighter?

is it shit?

Ben G

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Registered: 12th Jan 07
Location: Essex
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9th Aug 11 at 17:41

proper carbon fibre is a lot stronger hence being more expensive.

fibre glass is pretty light though.

taylorboosh

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Registered: 3rd Apr 07
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9th Aug 11 at 17:52

watching a fibreglass bonnet and boot for the imp on ebay is all... hinges on if i win the cage or not

alan-g-w

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Registered: 9th Nov 07
Location: Glasgow
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9th Aug 11 at 19:11

See when you're saying imp, do you mean a hillman imp or an impreza?

FAZ

Premium Member

Registered: 24th Nov 07
Location: Coventry
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9th Aug 11 at 19:18

hillman at a guess

alan-g-w

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Registered: 9th Nov 07
Location: Glasgow
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9th Aug 11 at 19:23

I thought so too before but with this talk of cf and fibreglass it made me wonder

taylorboosh

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Registered: 3rd Apr 07
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9th Aug 11 at 20:25

Lol its a hillman. Thread in projects

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Registered: 10th Sep 03
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9th Aug 11 at 20:39

Depending on what you use, fibreglass can be stronger than carbon fibre. Carbon fibre has a higher strength to weight ratio than fibreglass however so you end up with lighter parts.

All depends on what you're trying to achieve.

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Registered: 10th Sep 03
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9th Aug 11 at 20:41

Carbon fibre is more expensive than fibreglass as the process of producing carbon filaments is more expensive than producing glass filaments.

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Registered: 10th Sep 03
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9th Aug 11 at 20:43

It also depends a lot on the resin and layup techniques too. If fibreglass was shit, they wouldn't make aeroplanes and boats out of the stuff.

My two pence at least.

taylorboosh

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Registered: 3rd Apr 07
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10th Aug 11 at 05:57

its for a road car, bonnet and boot need repairing/painting whatever happens, figured changing/upgrading is a good move

taylorboosh

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Registered: 3rd Apr 07
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10th Aug 11 at 06:01

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=130560127730&ssPageName=STRK:MEWAX:IT

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=130560437472&ssPageName=STRK:MEWAX:IT

the parts in question

an offer may be made if i dont win this, my max bid is £200

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=230656564201&ssPageName=STRK:MEBIDX:IT

RichR

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Registered: 17th Oct 01
Location: Waterhouses, Staffordshire
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10th Aug 11 at 08:40

quote:
Originally posted by john-d
its for a road car, bonnet and boot need repairing/painting whatever happens, figured changing/upgrading is a good move

for this purpose Fibreglass will be fine. However, I'm yet to see a GRP or FRP pattern part that is perfectly accurate though but that said many steel pattern parts aren't accurate either so you'll have to roll with panel gaps potentially.

The other issue with carbon is where the part has intricate bends/compund curvature/return lips/swage lines. You're stressing the material and can end up with distortion of the weave very easily. This leads to inherent weak/strong points.

I would guess that most pattern parts are spray laminated using a chopper gun to fire Chopped strands and resin at the mould surface, its cheap and effective but certainly not accurate as far as weight and thickness control go. I doubt they'll be made up of anything more than chop strand matt if they're hand laminated as the cost would be prohibitive to look at high end wovens

[Edited on 10-08-2011 by LiVe LeE]

RichR

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Registered: 17th Oct 01
Location: Waterhouses, Staffordshire
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10th Aug 11 at 08:53

Actually, just looked at the links, they're seemingly well put together; the moulding work looks pretty good actually and I'd guess its been vac bagged or infused to get such a neat underside finish - but then making a tool suitable for infusion on a part which I wouldn't imagine would be used that often would be unusual.

Looks good though, both parts. There may be a bit of finishing/surface finishing to do before painting

taylorboosh

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Registered: 3rd Apr 07
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10th Aug 11 at 09:28

Lol that wont be my problem it will be toms if i can afford him when the time comes.

RichR

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Registered: 17th Oct 01
Location: Waterhouses, Staffordshire
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10th Aug 11 at 09:39

I wouldn't have thought it would be much though, sanding any tooling seam lines and trimming the edges if they're not .

If Tom hasn't got one (which I would guess he has) The merka tools are awesome to use when working on any GRP/FRP and virtually zero dust, they use an abrasive mesh as opposed to a sanding pad and draw a vacuum through the centre. I saw a hand paint product go from terrible, unusable finish to glass finish in 20minutes last week, awesome tools

taylorboosh

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Registered: 3rd Apr 07
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10th Aug 11 at 10:56

As said though tom isnt concrete. I will be wanting to use him though. Months away yet

xa0s

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Registered: 4th Mar 08
Location: Dartford, Kent Car: Turbo'd Fabia vRS
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10th Aug 11 at 11:08

always go for carbon over fibreglass where possible, fibreglass is cheap because it doesn't last as long and is more prone to rusting, hence being cheaper

VrsTurbo

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Registered: 8th Jun 10
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10th Aug 11 at 11:09

quote:
Originally posted by xa0s
always go for carbon over fibreglass where possible, fibreglass is cheap because it doesn't last as long and is more prone to rusting, hence being cheaper

wow a non metal rusting

Steve

Premium Member

Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
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10th Aug 11 at 11:17

wtf fibreglass rusting

kennySRi

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Registered: 12th Nov 10
Location: Lancashire
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10th Aug 11 at 11:37

quote:
Originally posted by xa0s
always go for carbon over fibreglass where possible, fibreglass is cheap because it doesn't last as long and is more prone to rusting, hence being cheaper

smcGSI16V

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Registered: 26th May 03
Location: Farnborough Drives: Thurlby 888 CDTi No.98
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10th Aug 11 at 12:45

quote:
Originally posted by xa0s
always go for carbon over fibreglass where possible, fibreglass is cheap because it doesn't last as long and is more prone to rusting, hence being cheaper

FLOL!

taylorboosh

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Registered: 3rd Apr 07
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10th Aug 11 at 13:15

Flol fibreglass rusting..

Also i cant afford carbon

redtom

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Registered: 6th Oct 07
Location: Kent
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10th Aug 11 at 13:37

Everyone taking the bait

antnee

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Registered: 30th Dec 07
Location: Cov Drives: Clio 197
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10th Aug 11 at 13:38

I've never seen a fibre glass boat rust.

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