(Last Updated On: July 8, 2021)

10 Most widely used injection molding materials

Material Properties

Molding Characteristics

More plastic molding materials in details

ABS

Application: Automotive parts, Electronic housings, Medical component, Consumer products
Characteristics: Cosmetic appearance, Dimensional stability, Impact resistance
Tensile Strength: 5,000-12,000 psi
Impact Strength: 3-7.5 ft-lb/in
Max Temperature: 140-200°F
Elongation at Break: 20-30%

ABS/PC

Application: Automotive components, Medical hardware, Electrical housings, Computers, Monitors, Enclosures
Characteristics: Cosmetic appearance, Dimensional stability, Impact resistance
Tensile Strength: 6,400-18,000 psi
Impact Strength: 8-12 ft-lb/in
Max Temperature: 140-210°F
Elongation at Break: 40-50%

HDPE

Application: Consumer products, Houseware items, Electronic wire/cable insulators, Medical products,
Characteristics: Durability, Impact resistant, Stiffness
Tensile Strength: 2,900-4,500 psi
Impact Strength: 80 ft-lb/in²
Max Temperature: 130-250°F
Elongation at Break: 350-950%

LCP

Application: Electrical parts, Mechanical parts, Engine components, Hairdryer housings, Food containers
Characteristics: Strength, Temperature resistance
Tensile Strength: 12,000-32,000 psi
Impact Strength: 10 ft-lb/in
Max Temperature: 525°F
Elongation at Break: 1.60%

LDPE

Application: Consumer products, Houseware items, Electronic wire/cable insulators, Medical products
Characteristics: Crack resistance, Flexibility, Impact resistance
Tensile Strength: 1,200-4,000 psi
Impact Strength: 130 ft-lb/in²
Max Temperature: 130-190°F
Elongation at Break: 400-500%

PA (Nylon)

Application: Automotive components, Electronic connectors, Gears, Consumer products, Industrial products
Characteristics: Rigidity, Strength, Temperature resistance
Tensile Strength: 6,000-29,000 psi
Impact Strength: 2-8 ft-lb/in
Max Temperature: 180-350°F
Elongation at Break: 10-60%

PBT

Application: Automotive housings-under the hood, Power tool casings, Radiator fans & housings, Industrial equipment applications, Business equipment
Characteristics: Chemical resistance, Dimensional stability, Low moisture absorption
Tensile Strength: 6,000-17,500 psi
Impact Strength: 1-3 ft-lb/in
Max Temperature: 200-420°F
Elongation at Break: 2-50%

Polycarbonate (PC)

Application: Automotive Headlights, Business Machines, Consumer Products, Telecommunications, Medical Products, Mechanical Goods
Characteristics: Dimensional stability, Impact resistance
Tensile Strength: 9,000-23,000 psi
Impact Strength: 2-18 ft-lb/in
Max Temperature: 150-300°F
Elongation at Break: 5-120%

PEI (Ultem)

Application: Commercial aircraft interiors, Healthcare products, Cooking utensils, Fiber optics, Electrical products, Electronic parts
Characteristics: Heat resistance, Impact resistance, Strength
Tensile Strength: 14,000-28,000 psi
Impact Strength: 1-2 ft-lb/in
Max Temperature: 350-420°F
Elongation at Break: 4-60%

PET

Application: Reusable bottles, Pacifiers, Sippy cups, Bottle sterilizer lids, Medical devices, Housewares
Characteristics: Chemical resistance, Stiffness, Strength
Tensile Strength: 7,000-23,000 psi
Impact Strength: 0.5-8 ft-lb/in
Max Temperature: 250-470°F
Elongation at Break: 1-45%

PMMA (Acrylic)

Application: Automotive Transparent Items such as Head/Tail Lenses and Trim, Household Light Fixtures and Decorative Items, Safety Equipment and Shields
Characteristics: Optical clarity, Rigidity
Tensile Strength: 2,800-13,000 psi
Impact Strength: 0.25-1 ft-lb/in
Max Temperature: 180-215°F
Elongation at Break: 3-7%

POM (Acetal/Delrin)

Application: Mechanical Automotive, Business Machines, Household Appliance, Gears, Bushings, Door Handles, Seat Belt Parts.
Characteristics: Chemical resistance
Tensile Strength: 6,000-22,000 psi
Impact Strength: 0.75-2 ft-lb/in
Max Temperature: 180-300°F
Elongation at Break: 10-40%

PP

Application: Packaging, Industrial components for fluid processing, Household goods, Automotive, Electrical hardware
Characteristics: Chemical resistance, Solvent resistance
Tensile Strength: 3,900-18,500 psi
Impact Strength: 0.5-5.5 ft-lb/in
Max Temperature: 120-300°F
Elongation at Break: 10-230%

PPS

Application: Hydraulic components, Bearings, Cams, Valves, Electronic parts
Characteristics: Chemical resistance, Temperature resistance
Tensile Strength: 14,000-28,000 psi
Impact Strength: 0.5-6 ft-lb/in
Max Temperature: 400-500°F
Elongation at Break: 1-2%

PS

Application: Household Goods, Containers, Furniture, Housings, Packaging
Characteristics: Impact resistance, Stiffness
Tensile Strength: 4,200-11,000 psi
Impact Strength: 0.25-7 ft-lb/in
Max Temperature: 185-190°F
Elongation at Break: 3-30%

PSU

Application: Appliance parts, Electronic parts, Automotive parts, Medical components, Business Equipment, Insulators
Characteristics: Corrosion resistance, Mineral resistance, Sterilizability, Strength
Tensile Strength: 9,500-18,000 psi
Impact Strength: 0.5-7 ft-lb/in
Max Temperature: 300-350°F
Elongation at Break: 50-100%
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