Kevlar-Reinforced Nylon
3DXTech
⬡ Chemical Resistant
250–280
°C
Print Temp
80–100
°C
Bed Temp
120
°C
Max Service
Overview
Nylon 6/12 or PA12 matrix reinforced with para-aramid (Kevlar/Twaron) chopped fibers. The aramid fibers provide exceptional toughness, wear resistance, and vibration damping — properties that CF-reinforced nylon lacks. One of the best functional filaments for high-wear mechanical components.
Properties
Difficulty
expert
Flexibility
semi-flex
Layer Adhesion
good
Enclosure
recommended
Heated Bed
required
Dry Storage
required
Pros
- Exceptional toughness and impact resistance
- Superior wear resistance vs CF nylon
- Good chemical resistance
- Self-lubricating properties from nylon matrix
- Excellent vibration damping
- Can flex without brittle fracture
- Higher fatigue life than CF nylon
Cons
- Extremely expensive ($80-150/kg)
- Very hygroscopic — dry storage critical
- Requires hardened or stainless steel nozzle (aramid is abrasive)
- High print temperature (250-280°C)
- Limited brands available
- Surface can be slightly fuzzy from fiber pull-out
- Enclosure recommended
Best For
- High-wear gears and sprockets|Protective gear components|Automotive and motorsport parts|Industrial machinery components|Parts requiring toughness AND wear resistance|Robotics drivetrain components
Avoid For
- Cosmetic parts (surface texture from fiber pull-out)|Standard brass nozzles|Beginners (requires expert tuning and dry storage)|Cost-sensitive projects|Food contact
Storage
CRITICAL: Vacuum-seal immediately after use with fresh desiccant. Nylon absorbs moisture rapidly — wet printing causes bubbling, weak layers, and nozzle clogging. Pre-dry at 80°C for 8+ hours. Use food dehydrator with accurate temperature control.
Brands
3DXTech AreKor Kevlar NylonKimya PA12-HP Aramid