
 Originally Posted by 
xb1
					
				 
				You need to actually determine what type of CF manufacturing process by which the hood was made.  If its a Seibon, chances are there is enough gel coat on it so that you can sand/polish the crap out of it and not get down to the CF sheet.  Since Seibon also uses fiberglass as the actual supportive material, the resin yellowing will be very little when compared to a VIS hood, and much much less than a dry carbon hood like a real J's or Spoon hood.  If you have a Seibon or VIS, then you really need to re-GEL it, not sand away the gel and clear coat it.  Clear coating after sanding off gelcoat will actually make the hood more likely to crack if something hits it, since some of the structural material has been taken off.  Its still pretty hard to crack one, as the fiberglass underneath is fairly resilient, but the gelcoat on top would splinter.
If its dry carbon, then the yellowing and dulling is what happens to the resin from UV exposure.  This will always happen and there is nothing you can do to fix it other than taking off all the resin and basically re-resining the whole thing.  If you don't know how to make CF parts, then there is no way you can do this.  My only suggestion, if this is the case, is to find someone who does make CF part (like me) and have them strip, resin and gelcoat your hood with UV-resistant gelcoating.  Or you could just paint it, which is what most people end up doing with dry carbon pieces that were not covered with some type of UV protectant.  Its still nice and light, but just painted.