Carbon fiber can be sanded safely when work stays within the clear coat or resin-rich surface layer. Sanding into the woven fabric weakens the carbon fiber laminate. The clear coat and top epoxy layer sit above the structural weave and can be sanded to remove defects. Sanding here corrects orange peel, dust nibs, and uneven gloss on a carbon fiber

Durability in a carbon fiber part depends on fiber quality, laminate design, environmental exposure, and how the part was cured and machined. A single carbon filament resists degradation well on its own, but durability changes once fibers are bonded into a laminate. Resin quality, fiber alignment, and bonding strength all influence how long the finished part performs. A carbon fiber