Molding Materials Introduction
Molding Materials Introduction

Molding Materials Introduction

MaterialФункцииTensile Strength (psi)Flexural Modulas (psi)Impact Strength (notched izod ft-lb/in)Max Temperature (deflection or softening)

ABS (Acrylonitrile Butadiene Styrene)

  • Good impact resistance
  • Good processability and appearance
  • Dimensional stability
5,000-12,000270,000-380,0003.0-7.5140°-200° F

ABS/PC (Acrylonitrile Butadiene Styrene / Polycarbonate)

  • Good impact resistance
  • Good processability and appearance
  • Dimensional stability
6,400-18,000300,000-390,0008-12140°-210° F

ETPU (Engineered Thermoplastic Polyurethane)

  • Reduced stress cracking
  • Impact resistance
10,000319,00010280° F

HDPE (High Density Polyethylene)

  • Durable
  • Good stiffness
  • Impact resistant
2,900-4,500100,000-470,00080 ft-lb/in²130-250° F

LCP (Liquid Crystal Polymer)

  • High temperature
  • Thin walls acceptable
  • High strength
12,000-32,0001,300,000-4,600,00010525° F

LDPE (Low Density Polyethylene)

  • Good impact strength
  • Crack resistant
  • Excellent flexibility
1,200-4,00034,000-48,000130 ft-lb/in²130-190° F

LLDPE (Linear Low Density Polyethylene)

  • Excellent low temperature flexibility
140034,000190190° F

PA (Nylon)

  • Temperature resistance
  • Unfilled and glass filled available
6,000-29,000170,000-1,680,0002-8180°-350° F

PBT (Polybutylene Terephthalate)

  • Good chemical resistance
  • Good dimensional stability
  • Low moisture absorption
6,000-17,500300,000-1,300,0001-3200-420° F

PC (Polycarbonate)

  • Impact resistance
  • Dimensional stability
9,000-23,000335,000-1,600,0002-18150-300° F

PC/PBT (Polycarbonate / Polybutylene Terephthalate)

  • Good impact resistance at low temperatures
6300250,00017210° F

PEEK (Polyetheretherketone)

  • Good sterilizability
  • Good chemical resistance
  • High strength and stiffness
  • Creep resistant
13,000-30,000500,000-1,900,0003.5-4.5300°-625° F

PEI (Ultem)(Polyether Imide)

  • High heat resistance
  • High strength and impact resistance
14,000-28,000480,000-1,800,0001-2350-420° F

PET (Thermoplastic Polyester Resin)

  • Good balance of strength, stiffness and toughness
  • Excellent electrical properties and chemical resistance
7,000-23,000350,000-3,000,000.5-8250-470° F

PETG (Copolyester)

  • Good toughness
  • Radiation and E-beam sterilizable
  • High clarity
7250305,0003185° F

PMMA (Acrylic)

  • Optical clarity
  • Rigid
2,800-13,000221,000-550,000.25-1180°-215° F

POM (Acetal or Delrin)

  • Chemical Resistant
  • High tensile strength
6,000-22,000120,000-170,000.75-2180°-300° F

PP (Polypropylene)

  • Best for living hinge
  • Chemical resistant
  • Solvent resistant
3,900-18,500150,000-1,500,0000.5-5.5120°-300° F

PPE/PS (Polyphenylene Ether / High Impact Polystyrene)

  • Low water absorption
  • Hydrolytic stability
  • Suitable for fluid engineering applications
  • Good dimensional stability
8500384,0002.5-8250-280° F

PPS (Polyphenylene Sulfide)

  • Good chemical resistance
  • Good mechanical properties at high temperatures
  • High heat resistance
14,000-28,000550-2,900,000.5-6400-500° F

PS (High Impact Polystyrene)

  • High gloss
  • High impact and stiffness
4,200-11,000160,000-950,000.25-7185-190° F

PSU (Polysulfone)

  • Tough, rigid and high strength
  • Hydrolysis and oxidation resistant
  • Withstands repeated sterilization
  • Highly resistant to mineral acid, alkali and salt solutions
9,500-18,000390,000-1,500,000.5-7300-350° F

SB (Styrene Butadiene)

  • Good stiffness and toughness
  • High clarity
  • Warp resistant
  • Can be used in living hinge
4850261,000.5-1150-160° F

TPE/TPV (Thermoplastic Elastomer)/(Thermoplastic Vulcanizate)

  • Flexible
1,000-7,0005,000-800,000200-300° F

TPU (Thermoplastic Polyurethane Elastomer)

  • Abrasion resistant
  • Impact strength
  • Flexible
6,900-12,000260,000-340,000.75-10150-250° F

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