Properties/Materials PE Nylon Rubber (for reference)
Specific gravity 0.95 1.15 1.15
Stretching strength (Kg/cm2) 250 750 200
Tensile stretch (%) 20 50-120 450
Compression strength (kg/cm2) 200 900 200
Anti-deformation strength (kg/cm2) 140-210 1000  
Young modulus (kg/cm2) 5600-10500 26000 40
Shock resistance (kg/cm) 70 200  
Friction coefficient 0.1-0.2 0.2 0.3-0.6
Abrasion resistance 0.5 0.28 1