‌Wear Resistance‌

3–5 times higher than natural rubber; outperforms metal in extreme conditions

Metals are prone to wear; rubber has lower wear resistance

‌Corrosion Resistance‌

Resistant to strong acids, alkalis, oils, and chemicals; stable in harsh environments

Metals require additional anti-corrosion treatments; plastics have limited chemical resistance

‌Mechanical Strength‌

High strength, toughness, and tear resistance; withstands high loads and impacts

Metals are strong but brittle; plastics are flexible but lack strength

‌Weight‌

Lightweight yet strong, with density lower than metal but comparable strength

Metals are heavy; plastics are light but weak

‌Temperature Resistance‌

Wide temperature range (-40°C to 120°C); maintains elasticity in low temperatures

Metals may become brittle in cold conditions; plastics deform under high heat

‌Process Flexibility‌

Can be molded into complex shapes via pultrusion, injection molding, etc.; fast curing & high fiber content

Metal processing is complex; plastics have molding limitations

‌Environmental Impact‌

Some use bio-based materials, reducing carbon footprint

Metals have high energy consumption; plastics are difficult to degrade

‌Lifespan‌

Excellent aging resistance; long outdoor durability

Metals require frequent maintenance; plastics degrade easily

‌Vibration/Damping‌

Superior shock absorption, reducing mechanical vibration and noise

Metals have poor vibration damping; rubber absorbs shock but ages rapidly