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YOUR RESEARCHRepairing cracked carbon fiber air vents
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Repair cf sill protectors
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Suggestion · Original poster
I read that you can repair the CF sill protectors with some careful removal of the cracked resin and sanding and recoating.
Leading evidence: 'Repair cf sill protectors' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Repair cf sill protectors' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Suggestion
If that's the case, re-clearing is not going to repair the damaged carbon fiber strands.
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I've found lots of threads on the defroster strips, mine are long since missing so I do t have that issue. My vents though do have some warping and cracking from sun. I read that you can repair the CF sill protectors with some careful removal of the cracked resin and sanding and recoating. Is it the same for the vents?
here are mine for reference
Yes. You can grind down the cracked section. Then you will need to recover the section with resin. You have have to do this multiple times with sanding between each coat as the originals would have been vacuum formed. Once it is done an even you will need to wet sand until it is fully polished. Not sure the process is worth it for those unless you just like projects to work on.
Looks like the CF itself is cracked..is that correct? If that's the case, re-clearing is not going to repair the damaged carbon fiber strands.
Sanding it down to the carbon fiber and adding another layer of CF would be the proper fix, but unless you really love the look, replacing it with a non-CF version (or covering it over with Di-noc or the vinyl product of your choice) would be much cheaper and easier.
It looks like it's just the resin/gel coat that's cracked - It's lifted off the CF cloth a little on either side of the crack (that's the light area). You can probably cut the loose resin out with a fine dremel tool and refill those areas with resin, then grind and sand till smooth again (as mentioned earlier - wet sand/polish). Definitely a lot of work, but if it comes out nice you'll have saved a bunch of $
Be very careful when sanding. The dust from sanding CF or Kevlar have negative heath consequences when aspirated.
Be sure to wear a good quality respirator. A surgical mask is better than nothing, but not as effective as a respirator.
