SMC Wearcomp®

Overview
Wearcomp® sheet molding compound (SMC) composites are polyimide-based thermoset materials reinforced with chopped carbon fiber. They provide high shear strength, impact resistance and sustained performance at continuous operating temperatures up to 315°C (600°F). Designed as a metal replacement for demanding industrial and aerospace environments, Wearcomp® enables reduced lubrication needs, cleaner operation and lower maintenance downtime.

Composition
Wearcomp® is formulated from high-temperature polyimide thermoset resin blended with 1 in chopped carbon fiber (≈25 mm). Available variants include:

• Wearcomp®: polyimide thermoset resin reinforced with carbon fibers — low coefficient of friction and high wear resistance
• Wearcomp® 200: same base formulation with added graphite for further friction reduction
• Other reinforcement options: glass or alternative carbon fiber formats depending on application requirements

Applications
Suitable for high-mechanical-demand applications and where metal replacement, weight savings or elimination of lubrication are required. Typical uses include:

• Aviation critical systems (engine components, flight controls, landing gear)
• Wheel and braking systems
• Bushings, guide rings, wear liners, seals, clamps and thermal isolators

Key benefits

• High shear strength and impact resistance
• Durability at elevated temperatures
• Low coefficient of friction (improved in graphite-containing grades)
• Metal replacement enabling weight reduction and reduced lubrication
• Cleaner operation with decreased maintenance and downtime

Standard Specifications
Materials: polyimide thermoset resin with high carbon fiber content
Service conditions: temperature range −140°C to +320°C; continuous operating up to 315°C (600°F)
Mechanical strength: 510 MPa
Manufacturing: injection molding; sheet molding compound (SMC)
Dimensions: sheets up to 20 in × 30 in (approx. 508 × 762 mm)

Regulatory / environmental note
PFAS-Free: material is not intentionally formulated with PFAS; environmental traces cannot be fully excluded.

Technical characteristics / specifications

• Product family / trade name: Wearcomp®
• Base resin: high-temperature polyimide thermoset
• Reinforcement: 1 in chopped carbon fiber (typical); glass or carbon options available
• Special grade: Wearcomp® 200 with graphite for enhanced low friction
• Continuous operating temperature: up to 315°C (600°F); service range −140°C to +320°C
• Mechanical strength: 510 MPa
• Manufacturing methods: injection molding; SMC
• Sheet size capability: up to 20 in × 30 in
• Functional benefits: low friction, high wear resistance and impact resistance; metal replacement for weight and lubrication reduction
• PFAS statement: not intentionally added (environmental traces possible)