Gen 3 CarbonX™ CF-Nylon Filament is an advanced semi-aromatic polyamide copolymer reinforced with high-modulus carbon fiber. This filament is ideal for anyone that desires a structural component with high modulus, improved chemical and thermal resistance, excellent surface quality, and ease of printing. Tired of nylon that warps? This is the answer you've been looking for. Excellent dimensional stability comes from the carbon fiber and the semi-aromatic nylon.