Best for
Track splitters, stiff underbodies, brackets and parts where flex is unacceptable.
Material · PA-CF
PA-CF (Carbon-Filled Nylon) for Track Aero Parts
Stiffer carbon-filled nylon for high-load splitters, undertrays and track aero when PETG or ASA is not rigid enough.
PA-CF combines nylon toughness with carbon fibre fill for higher stiffness. It suits functional aero that sees load and heat, at a higher price and with stricter print drying requirements.
We confirm PA-CF only when the use case justifies cost and handling.
Avoid when
Budget street lips with mild duty — ASA or PETG usually win on cost.
Print notes
Filament must be dry; expect longer lead times than PETG/ASA on complex geometries.
FAQ
Is PA-CF street legal / safe outdoors?
It can be used outdoors, but UV and moisture behaviour differ from ASA. We often recommend ASA for year-round parked street aero and PA-CF for stiffness-critical parts.
Why is PA-CF more expensive?
Material cost, drying, and print parameters drive price — often +50% or more versus PETG.
Can I mix ASA cosmetic covers with PA-CF structure?
Yes for some assemblies. Ask at quote so we design the join and fasteners correctly.