[Ducati] Refinishing carbon fiber

[newsystem]

Clear coat  is designed to cover 400 grit size scratches. If the 
scratches can be seen prior to clear coating, no doubt you'll see them 
more easily after clear coating. If you see what appear to be 
"scratches" and just are fine streaks of even a slightly different shade 
than the surrounding material, you'll see them through the clear coat.
To get rid of the scratches you may have to go back sanding  the carbon 
fiber material by sanding with 400 grit or the closest smaller grit( 
i.e. 320, 240) to the size of the scratches and then work your way up to 
400 grit again, make sure the surface looks homogeneous and then clear 
coat the whole thing again.
If the scratches are on the clear coat surface and are the size produced 
by 400 grit or smaller, the clear coat will easily cover them in 2 or 3 
coats. Sand the piece with 400 or 600, like you did, and then spray with 
clear coat again.
fv

 John Sheerin wrote:
> I did put on two light coats and then a thicker, wet coat of clear all at
> the same time (waiting about 15-20 minutes between coats, or whatever the
> clear coat called for).  I didn't buff the clear - I had runs from the last
> coat and needed to fix those anyway.  But I could still see all those little
> scratches.  Actually the clear made them pop out a lot more which is why I
> started sanding again.  Maybe they're bigger than what you're thinking of
> and I do just need to sand some more...
>
> John
> http://ldsg.snippets.org/HORNS/ducati.html
>
>
>
>   
>> To get rid of the tiny surface scratches I'd wet sand it with 400 grit,
>> 600 grit or dry scuff it with a 3m scratch pad, maroon color, and spray
>> at least two wet coats of high solids clear, other clears could take 3
>> coats as a minimum. That should take care of the tiny scratches as the
>> clear coat would cover them pretty well. You're half way there.
>> I don't think the problem was  your sanding since all the problem you
>> got were tiny scratches, but more so the not laying enough clear coat on
>> the part.
>> fv
>>