Common Plastic Molding Design Material Specification

Plastics Design Resources
Injection Molding Manufacturing and Services
Plastics Engineering Services | Plastic Molding Design Services

Common plastics engineering properties and thier applications

  • Polyester (PES) – Fibers, textiles.
  • Polyethylene terephthalate (PET) – Carbonated drinks bottles, peanut butter jars, plastic film, microwavable packaging.
  • Polyethylene (PE) – Wide range of inexpensive uses including supermarket bags, plastic bottles.
  • High-density polyethylene (HDPE) – Detergent bottles, milk jugs, and molded plastic cases.
  • Polyvinyl chloride (PVC) – Plumbing pipes and guttering, shower curtains, window frames, flooring.
  • Polyvinylidene chloride (PVDC) (Saran) – Food packaging.
  • Low-density polyethylene (LDPE) – Outdoor furniture, siding, floor tiles, shower curtains, clamshell packaging.
  • Polypropylene (PP) – Bottle caps, drinking straws, yogurt containers, appliances, car fenders (bumpers), plastic pressure pipe systems.
  • Polystyrene (PS) – Packaging foam/"peanuts", food containers, plastic tableware, disposable cups, plates, cutlery, CD and cassette boxes.
  • High impact polystyrene (HIPS) -: Refrigerator liners, food packaging, vending cups.
  • Polyamides (PA) (Nylons) – Fibers, toothbrush bristles, tubing, fishing line, low strength machine parts: under-the-hood car engine parts or gun frames.
  • Acrylonitrile butadiene styrene (ABS) – Electronic equipment cases (e.g., computer monitors, printers, keyboards), drainage pipe.
  • Polyethylene/Acrylonitrile Butadiene Styrene (PE/ABS) – A slippery blend of PE and ABS used in low-duty dry bearings.
  • Polycarbonate (PC) – Compact discs, eyeglasses, riot shields, security windows, traffic lights, lenses.
  • Polycarbonate/Acrylonitrile Butadiene Styrene (PC/ABS) – A blend of PC and ABS that creates a stronger plastic.used in car interior and exterior parts, and mobile phone bodies.
  • Polyurethanes (PU) – Cushioning foams, thermal insulation foams, surface coatings, printing rollers (Currently 6th or 7th most commonly used plastic material, for instance the most commonly used plastic in cars).

Plastic Properties

Material

Young's Modulus, psi

Poisson's Ratio

Shear Modulus, psi

Mass Density, lb/in3

Thermal Exp Coef, 1in/in/F

Ultimate Tensile, psi

Ultimate Compressive, psi

Ultimate Shear, psi

Thermal Conductivit , Btuin/hrft2F

Specific Heat, Btu/lb/F

Acrylonitrile-Butadiene-Styrene DH 380000 0.35 14000 0.03788 3.90E-05 13000 NA NA NA NA
Acrylonitrile-Butadiene-Styrene GSM 320000 0.35 12000 0.03752 NA 10700 NA NA 1.22 NA
Acrylonitrile-Butadiene-Styrene KJB 320000 0.35 12000 0.04401 5.50E-05 10000 NA NA NA NA
Delrin 100/500/900 410000 0.35 NA 0.05123 4.20E-05 14100 5200 9500 1.60 0.35
Polycarbonate Resin Thermoplastic 101/201 340000 NA 114000 0.04329 3.75E-05 14200 12500 10000 1.35 0.30
Polycarbonate Resin Thermoplastic 121/221 340000 NA 114000 0.04329 3.75E-05 14000 12500 10000 1.35 0.30
Polycarbonate Resin Thermoplastic 141/241 340000 NA 114000 0.04329 3.75E-05 14000 12500 10000 1.35 0.30
Polycarbonate Resin Thermoplastic 141L/241L 340000 NA 114000 0.04329 3.75E-05 14000 12500 10000 1.35 0.30
Polycarbonate Resin Thermoplastic 150 340000 NA 114000 0.04329 3.75E-05 13500 12500 10000 1.35 0.30
Polycarbonate Resin Thermoplastic 161/261 340000 NA 114000 0.04329 3.75E-05 14200 12500 10000 1.35 0.30
Polycarbonate Resin Thermoplastic 181/281 340000 NA 114000 0.04329 3.75E-05 14200 12500 10000 1.35 0.30
Polycarbonate Resin Thermoplastic 3412(20%GF) 800000 NA 203000 0.04878 1.49E-05 19000 16000 10000 1.47 0.28
Polycarbonate Resin Thermoplastic 3413(30%GF) 1100000 NA 260000 0.05181 1.21E-05 23000 18000 10500 1.50 0.27
Polycarbonate Resin Thermoplastic 3414(40%GF) 1400000 NA 319000 0.05495 9.30E-06 27000 21000 11000 1.53 0.25
Polycarbonate Resin Thermoplastic 500/503 500000 NA 147000 0.04505 1.79E-05 15000 14000 8500 1.41 0.29
Polycarbonate Resin Thermoplastic 920/940/950 325000 NA 114000 0.04329 3.80E-05 13200 12500 10000 1.35 0.30
Polycarbonate Resin Thermoplastic PPC4501 294000 NA NA 0.04329 5.10E-05 13800 NA 9800 1.46 0.30
Polycarbonate Resin Thermoplastic PPC4701 338000 NA NA 0.04329 4.50E-05 14100 NA 10600 1.43 0.30
Polyphenylene Oxide - Styrene 731 360000 NA NA 0.03824 3.30E-05 13500 NA NA NA NA
Polyphenylene Oxide - Styrene GFN2 750000 NA NA 0.04365 2.00E-05 18500 NA NA NA NA
Polyphenylene Oxide - Styrene GFN3 1100000 NA NA 0.04582 1.40E-05 20000 NA NA NA NA
Polyphenylene Oxide - Styrene HS1000 425000 NA NA 0.04509 3.00E-05 14000 NA NA NA NA
Polyphenylene Oxide - Styrene HS2000 500000 NA NA 0.04473 2.50E-05 16000 NA NA NA NA
Polyphenylene Oxide - Styrene N190 325000 NA NA 0.03896 4.00E-05 8200 NA NA NA NA
Polyphenylene Oxide - Styrene N225 345000 NA NA 0.03932 3.80E-05 11000 NA NA NA NA
Polyphenylene Oxide - Styrene N300 350000 NA NA 0.03824 3.00E-05 15100 NA NA NA NA
Polyphenylene Oxide - Styrene SE1 360000 NA NA 0.03824 3.30E-05 13500 NA NA NA NA
Polyphenylene Oxide - Styrene SE100 360000 NA NA 0.04331 3.80E-05 12800 NA NA NA NA
Polyphenylene Oxide - Styrene SE1-GFN2 750000 NA NA 0.04690 2.00E-05 18500 NA NA NA NA
Polyphenylene Oxide - Styrene SE1-GFN3 1100000 NA NA 0.04906 1.40E-05 20000 NA NA NA NA
Polyimide Thermoplastic Resins 1000 480000 0.44 NA 0.04582 3.10E-05 22000 21900 15000 0.85 NA
Polyimide Thermoplastic Resins 1010 480000 0.44 NA 0.04582 3.10E-05 22000 21900 15000 0.85 NA
Polyimide Thermoplastic Resins 2100 650000 NA NA 0.04834 1.80E-05 28000 22000 13000 1.22 NA
Polyimide Thermoplastic Resins 2200 900000 0.40 NA 0.05123 1.40E-05 30000 28700 13500 1.43 NA
Polyimide Thermoplastic Resins 2300 1300000 NA NA 0.05447 1.10E-05 33000 30700 14000 1.56 NA
Polyimide Thermoplastic Resins 2400 1700000 0.37 NA 0.05808 8.00E-06 36000 31800 15000 NA NA
Polyimide Thermoplastic Resins 4000 1300000 NA NA 0.06133 9.00E-06 16500 19400 9000 NA NA
Polyimide Thermoplastic Resins 6000 440000 NA NA 0.04654 2.90E-05 21000 20500 15000 NA NA
Polyimide Thermoplastic Resins 6100 670000 NA NA 0.04870 1.80E-05 28000 21300 14000 NA NA
Polyimide Thermoplastic Resins 6200 950000 NA NA 0.05159 1.40E-05 30000 25000 14000 NA NA
Polyimide Thermoplastic Resins 6202 550000 NA NA 0.05123 2.50E-05 21000 20500 14000 NA NA
Ultrason S1010 (PSU) 380000 NA 145000 0.04473 5.50E-05 11600 NA NA NA NA
Polybutylene Terephthalate PBT 310SEO 380000 NA NA 0.05000 4.40E-05 14700 14500 7700 NA NA
Polybutylene Terephthalate PBT 325 340000 NA NA 0.04695 4.50E-05 12000 13000 7700 NA NA
Polybutylene Terephthalate PBT 357 300000 NA NA 0.04808 5.10E-05 12000 5300 6000 NA NA
Polybutylene Terephthalate PBT 420 (30%GF) 1100000 NA NA 0.05495 1.40E-05 27500 18000 8900 NA NA
Polybutylene Terephthalate PBT 420 SEO (30%GF) 1100000 NA NA 0.05814 1.40E-05 27000 18000 9000 NA NA
Polybutylene Terephthalate PBT 508 (30%GF) 1000000 NA NA 0.05405 1.30E-05 24500 16700 8260 NA NA
Polybutylene Terephthalate PBT 553 (30%GF) 1000000 NA NA 0.05682 1.20E-05 28000 19550 8940 NA NA
Polybutylene Terephthalate PBT 701 (35%GMF) 800000 NA NA 0.05747 1.90E-05 18000 19000 8000 NA NA
Polybutylene Terephthalate PBT 730 (35%GMF) 900000 NA NA 0.05556 1.70E-05 16000 11000 5900 NA NA
Polybutylene Terephthalate PBT 735 (40%GMF) 1000000 NA NA 0.05814 1.40E-05 20000 14600 6800 NA NA
Polybutylene Terephthalate PBT 780 (40%GMF) 1500000 NA NA 0.06369 1.40E-05 24000 20000 8000 NA NA
Polybutylene Terephthalate PBT 815 (15%GF) 650000 NA NA 0.05128 2.50E-05 20000 21800 8900 NA NA
Polybutylene Terephthalate PBT 830 (30%GF) 1000000 NA NA 0.05376 1.40E-05 25000 21800 8900 NA NA
Polybutylene Terephthalate PBT 850 (15%GF) 750000 NA NA 0.05464 2.30E-05 20000 14970 7510 NA NA
Polybutylene Terephthalate PBT 855 (15%GF) 750000 NA NA 0.05556 2.50E-05 22000 15970 7390 NA NA
Polybutylene Terephthalate PBT 865 (30%GF) 1100000 NA NA 0.05952 1.20E-05 26000 19600 9000 NA NA
Polybutylene Terephthalate PBT DR-48 (15%GF) 730000 NA NA 0.05495 1.10E-05 21000 15000 8000 NA NA

Special applications plastics

  • Maleimide/Bismaleimide Used in high temperature composite materials.
  • Melamine formaldehyde (MF) – One of the aminoplasts, and used as a multi-colorable alternative to phenolics, for instance in moldings (e.g., break-resistance alternatives to ceramic cups, plates and bowls for children) and the decorated top surface layer of the paper laminates (e.g., Formica).
  • Plastarch material – Biodegradable and heat resistant, thermoplastic composed of modified corn starch.
  • Phenolics (PF) or (phenol formaldehydes) – High modulus, relatively heat resistant, and excellent fire resistant polymer. Used for insulating parts in electrical fixtures, paper laminated products (e.g., Formica), thermally insulation foams. It is a thermosetting plastic, with the familiar trade name Bakelite, that can be molded by heat and pressure when mixed with a filler-like wood flour or can be cast in its unfilled liquid form or cast as foam (e.g., Oasis). Problems include the probability of moldings naturally being dark colors (red, green, brown), and as thermoset it is difficult to recycle.
  • Polyepoxide (Epoxy) Used as an adhesive, potting agent for electrical components, and matrix for composite materials with hardeners including amine, amide, and Boron Trifluoride.
  • Polyetheretherketone (PEEK) – Strong, chemical- and heat-resistant thermoplastic, biocompatibility allows for use in medical implant applications, aerospace moldings. One of the most expensive commercial polymers.
  • Polyetherimide (PEI) (Ultem) – A high temperature, chemically stable polymer that does not crystallize.
  • Polyimide—A High temperature plastic used in materials such as Kapton tape.
  • Polylactic acid (PLA) – A biodegradable, thermoplastic found converted into a variety of aliphatic polyesters derived from lactic acid which in turn can be made by fermentation of various agricultural products such as corn starch, once made from dairy products.
  • Polymethyl methacrylate (PMMA) (Acrylic) – Contact lenses (of the original "hard" variety), glazing (best known in this form by its various trade names around the world; e.g., Perspex, Oroglas, Plexiglas), aglets, fluorescent light diffusers, rear light covers for vehicles. It forms the basis of artistic and commercial acrylic paints when suspended in water with the use of other agents.
  • Polytetrafluoroethylene (PTFE) – Heat-resistant, low-friction coatings, used in things like non-stick surfaces for frying pans, plumber's tape and water slides. It is more commonly known as Teflon.
  • Urea-formaldehyde (UF) – One of the aminoplasts and used as a multi-colorable alternative to phenolics. Used as a wood adhesive (for plywood, chipboard, hardboard) and electrical switch housings.
  • Furan—Resin based on Furfuryl Alcohol used in foundry sands and biologically derived composites.
  • Silicone—Heat resistant resin used mainly as a sealant but also used for high temperature cooking utensils and as a base resin for industrial paints.
  • Polysulfone—High temperature melt processable resin used in membranes, filtration media, water heater dip tubes and other high temperature applications.

Contribute Article Spider Optimizer

© Copyright 2000 - 2017, by Engineers Edge, LLC www.engineersedge.com
All rights reserved
Disclaimer | Feedback | Advertising | Contact

Spider Optimizer

Home
Engineering Book Store
Engineering Forum
Excel App. Downloads
Online Books & Manuals
Engineering News
Engineering Videos
Engineering Calculators
Engineering Toolbox
Engineering Jobs
GD&T Training Geometric Dimensioning Tolerancing
DFM DFA Training
Training Online Engineering
Advertising Center


Copyright Notice

Publishing Program