Carbon Fibre advice

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ApexLG
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Carbon Fibre advice

Post by ApexLG » Tue May 29, 2018 5:51 pm

Anyone on here worked with carbon fibre? Have a couple of questions about the resin on the part I picked up!
Thanks
2011 E82 120d Space Grey
P-Torque 220.2 bhp//333lb-ft
Darklines//BMWP Grills//Alcantara Trim//Twin Tips//AP Coilovers//
Zito ZF01//Carbon M4 Spoiler//Custom Carbon Splitter//Custom Carbon Diffuser//Depo V2//

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AndyBish135i
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Re: Carbon Fibre advice

Post by AndyBish135i » Tue May 29, 2018 6:08 pm

What do you need to know???

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ApexLG
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Re: Carbon Fibre advice

Post by ApexLG » Tue May 29, 2018 6:34 pm

AndyBish135i wrote:What do you need to know???
ImageImage
Have this kind of poor finish and wondering what the best way to fix it is, my thoughts are wet sand and another layer of resin?
2011 E82 120d Space Grey
P-Torque 220.2 bhp//333lb-ft
Darklines//BMWP Grills//Alcantara Trim//Twin Tips//AP Coilovers//
Zito ZF01//Carbon M4 Spoiler//Custom Carbon Splitter//Custom Carbon Diffuser//Depo V2//

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AndyBish135i
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Re: Carbon Fibre advice

Post by AndyBish135i » Tue May 29, 2018 6:39 pm

I wouldn’t bother mate, that’s total sh1te!!!

If you’ve bought this off a business seller I’d be firing it straight back for a full refund :o

If that’s not possible then yeah, sand back to smooth surface and re-apply layers of resin.

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ApexLG
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Re: Carbon Fibre advice

Post by ApexLG » Tue May 29, 2018 7:49 pm

AndyBish135i wrote:I wouldn’t bother mate, that’s total sh1te!!!

If you’ve bought this off a business seller I’d be firing it straight back for a full refund :o

If that’s not possible then yeah, sand back to smooth surface and re-apply layers of resin.
Nope I got it from a guy who made it but tried the resin himself! Got it for quite cheap so I thought i’d make it into a little project, should I use epoxy resin or gel coat? What grade sandpaper would you use mate?
2011 E82 120d Space Grey
P-Torque 220.2 bhp//333lb-ft
Darklines//BMWP Grills//Alcantara Trim//Twin Tips//AP Coilovers//
Zito ZF01//Carbon M4 Spoiler//Custom Carbon Splitter//Custom Carbon Diffuser//Depo V2//

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Dan116i
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Re: Carbon Fibre advice

Post by Dan116i » Tue May 29, 2018 7:58 pm

Jeeeeeeez

120grit wet/dry sand paper on the bumpy bits... and make your way up the grades... once you’re at 2000 grit, you can then move onto a Polish....

Easycomposites is the best place to get the resin from....

Just don’t sand into the weave

Material cost... you’re looking at £50 to fix that... excluding time
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AndyBish135i
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Re: Carbon Fibre advice

Post by AndyBish135i » Tue May 29, 2018 8:02 pm

OK, so you’ll need to get back to a smooth surface without damaging the carbon fibre itself... although it looks like you’ve got some areas that are barely wetted out.
400 grit will take you a loooong time but will be safer than using something course and blasting through the resin too quickly.
Then you’ll want a good quality epoxy resin system with UV stabilisers to give you a finished surface or it’ll go yellow over time...
Then 2000 grit and a good polish :wink:
Good luck 👍

^yep what Dan said :lol:

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SuperMoose2403
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Re: Carbon Fibre advice

Post by SuperMoose2403 » Tue May 29, 2018 8:52 pm

Dan116i wrote:
Tue May 29, 2018 7:58 pm
... excluding time
^ this..

It's going to take a lot of time to bring that up to scratch. If you're up for the challenge and have some free time to use, you should be able to improve on it. (And pictures if you do go ahead with it!)
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ApexLG
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Re: Carbon Fibre advice

Post by ApexLG » Tue May 29, 2018 9:31 pm

Thanks for the help guys! It does look like a lot of work but I’ll be chuffed if I can get it looking nice! Image
Is this what I’m looking for? Can anyone recommend a youtube guide for applying the resin?
Cheers!
2011 E82 120d Space Grey
P-Torque 220.2 bhp//333lb-ft
Darklines//BMWP Grills//Alcantara Trim//Twin Tips//AP Coilovers//
Zito ZF01//Carbon M4 Spoiler//Custom Carbon Splitter//Custom Carbon Diffuser//Depo V2//

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ApexLG
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Re: Carbon Fibre advice

Post by ApexLG » Fri Jun 01, 2018 9:09 am

AndyBish135i wrote:
Tue May 29, 2018 8:02 pm
OK, so you’ll need to get back to a smooth surface without damaging the carbon fibre itself... although it looks like you’ve got some areas that are barely wetted out.
400 grit will take you a loooong time but will be safer than using something course and blasting through the resin too quickly.
Then you’ll want a good quality epoxy resin system with UV stabilisers to give you a finished surface or it’ll go yellow over time...
Then 2000 grit and a good polish :wink:
Good luck 👍

^yep what Dan said :lol:
Hi Andy, Do you think 1kg of the XCR resin would be enough for a diffuser? Dont want to get too much of the stuff either! :D
2011 E82 120d Space Grey
P-Torque 220.2 bhp//333lb-ft
Darklines//BMWP Grills//Alcantara Trim//Twin Tips//AP Coilovers//
Zito ZF01//Carbon M4 Spoiler//Custom Carbon Splitter//Custom Carbon Diffuser//Depo V2//

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AndyBish135i
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Re: Carbon Fibre advice

Post by AndyBish135i » Fri Jun 01, 2018 9:31 am

I would have thought 1kg should be enough as you’re only adding finishing layers...
(and you can always buy more if needed) :wink:

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Re: Carbon Fibre advice

Post by Stumps » Sun Aug 05, 2018 9:16 pm

Hi there,

Please please be careful you really should be wearing a mask with that stuff and definitely be wearing gloves with any type or Resin.

Only sand in one way and like the other reply say not against the grain.

Good luck with that.

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