Plastics

Selecting Plastic Resin

When selecting a material, you can choose from a wide variety of engineering plastic resins. Consider the mechanical properties, manufacturability characteristics, cosmetic appearance, and cost that will meet your project requirements.

Material Attributes Tensile Strength Impact Strength Heat Deflection Elongation at Break Manufacturing Process
ABS Cosmetic appearance 5,000-12,000 psi 3-7.5 ft-lb/in 140-200°F 20-30% Injection Molding
Dimensional stability
Impact resistance
ABS/PC Cosmetic appearance 6,400-18,000 psi 8-12 ft-lb/in 140-210°F 40-50% Injection Molding
Dimensional stability
Impact resistance
HDPE Durability 2,900-4,500 psi 80 ft-lb/in² 130-250°F 350-950% Injection Molding
Impact resistant
Stiffness
LDPE Crack resistance 1,200-4,000 psi 130 ft-lb/in² 130-190°F 400-500% Injection Molding
Flexibility
Impact resistance
LLDPE Flexibility 1,400 psi 190 ft-lb/in 190°F 600% Injection Molding
PA (Nylon) Rigidity 6,000-29,000 psi 2-8 ft-lb/in 180-350°F 10-60% Injection Molding
Strength
Temperature resistance
PBT Chemical resistance 6,000-17,500 psi 1-3 ft-lb/in 200-420°F 2-50% Injection Molding
Dimensional stability
Low moisture absorption
Polycarbonate (PC) Dimensional stability 9,000-23,000 psi 2-18 ft-lb/in 150-300°F 5-120% Injection Molding
Impact resistance
PEEK Chemical resistance 13,000-30,000 psi 3.5-4.5 ft-lb/in 300-625°F 40-50% Injection Molding
Sterilizability
Stiffness
Strength
PEI (Ultem) Heat resistance 14,000-28,000 psi 1-2 ft-lb/in 350-420°F 4-60% Injection Molding
Impact resistance
Strength
PET Chemical resistance 7,000-23,000 psi 0.5-8 ft-lb/in 250-470°F 1-45% Injection Molding
Stiffness
Strength
PETG Durability 7,250 psi 3 ft-lb/in 185°F 100-130% Injection Molding
Transparency
PMMA (Acrylic) Optical clarity 2,800-13,000 psi 0.25-1 ft-lb/in 180-215°F 3-7% Injection Molding
Rigidity
POM (Acetal/Delrin) Chemical resistance 6,000-22,000 psi 0.75-2 ft-lb/in 180-300°F 10-40% Injection Molding
PP Chemical resistance 3,900-18,500 psi 0.5-5.5 ft-lb/in 120-300°F 10-230% Injection Molding
Solvent resistance
PPE/PS Dimensional stability 8,500 psi 2.5-8 ft-lb/in 250-280°F 15-30% Injection Molding
Low moisture absorption
Suitable for fluids
PPS Chemical resistance 14,000-28,000 psi 0.5-6 ft-lb/in 400-500°F 1-2% Injection Molding
Temperature resistance
PPSU Chemical resistance 10,100 psi 13 ft-lb/in 428°F 40-120% Injection Molding
Flame resistance
Impact resistance
PS Impact resistance 4,200-11,000 psi 0.25-7 ft-lb/in 185-190°F 3-30% Injection Molding
Stiffness
PVC Chemical resistance 7,800 psi 0.8 ft-lb/in 162-172° F 150% Injection Molding
Corrosion resistance
Flame resistance