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Polypropylene is an economical material that offers a combination of outstanding physical, mechanical, thermal, and electrical properties not found in any other thermoplastic. Compared to low or high density polyethylene, it has a lower impact strength, but superior working temperature and tensile strength. Noted for its excellent chemical resistance in corrosive environments, Polypropylene provides excellent resistance to organic solvents, degreasing agents and electrolytic attack. It is light in weight, resistant to staining, and has a low moisture absorption rate.

Polypropylene is available in two basic types as either homopolymer or copolymer material. Although similar in many respects each type exhibits distinct differences in both appearance and performance.

Polypropylene Homopolymer (PPH) is the most widely utilized. PPH offers a high strength to weight ratio and is stiffer and stronger than copolymer, this combined with good chemical resistance and weldability allows this material to be used in many corrosion resistant structures.

Polypropylene copolymer (PPC) is a bit softer but have better impact strength, is tougher and more durable than homopolymer polypropylene. Copolymer polypropylene tends to have better stress crack resistance and low temperature toughness than homopolymer at the expense of quite small reductions in other properties.

A large number of end use applications for PP are possible by tailoring grades with specific molecular properties and additives during its manufacture. Contact an Emco Industrial Plastics representative who can help you choose the correct material to meet the needs of your applications.

Brand Names

  • Inertec 200
  • Protec®
  • Proteus®
  • Versadur® 570

Emco Industrial Plastics doesn’t claim to represent all of the manufacturers or trade name products listed. This list is intended as a guide of typical materials available for purchase from Emco Industrial Plastics, Inc. For additional information, contact an Emco Industrial Plastics representative with the form below.

 

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At a Glance

Generic Name
Polypropylene, Copolymer

Available In
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Technical Information

Stock Products Properties Applications Advantages Grades

Stock Products

TypeSizeLengthColor
Sheet 1/8″ – 3″ TH 48′ x 96″; CTS Natural, Black, White

Give us your cut-to-size dimensions. We will precision-cut these plastics to your exact size. Additional sizes and colors available upon request.

Properties

Physical PropertiesUnitsASTMResults
Density lb/in³ D792 0.033
Water Absorption, 24 hrs % D570 0.01
Mechanical PropertiesUnitsASTMResults
Tensile Strength @yield psi D638 4800
Tensile Elongation @Yield % D638 23
Flexural Strength psi D790 5400
Flexural Modulus psi 400000 160000
Compressive Strength psi D695 6000
Hardness, Rockwell R D785 80
IZOD Impact Strength Notched ft-lb/in D256 7.5
Thermal PropertiesUnitsASTMResults
Coefficient of Linear Thermal Expansion (x 10⁻⁵in./in./°F) D256 6.6
Heat Deflection Temp at 66 psi °F D648 173
Heat Deflection Temp at 264 psi °F 110
Melting Temperature °F D3418 327
Max Operating Temp °F 170
Flammability Rating UL94 NR
Electrical PropertiesUnitsASTMResults
Dielectric Strength 1/8″ th. V/mil D149 475
Dielectric Constant D150 2.2 – 2.36
Dissipation Factor @ 1 Hz D150 0.0017
Volume Resistivity, 50% RH ohm-cm D257 2 x 10¹⁶
Arc Resistance sec D495 100

NOTE: The property values presented above are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control. Contact us for manufacturers’ complete material property datasheets. All values at 73°F (23°C) unless otherwise noted.

Applications

  • Pump components, impellers, and casings
  • Liners and covers
  • Fume hoods and ducts
  • Structural tanks for chemicals
  • Industrial battery cases
  • Orthotics

Advantages

  • Resists most acids, alkalis and solvents
  • No moisture absorption
  • USDA and FDA approved for use in food processing industries
  • Formable, machineable, and weldable
  • Impact and abrasion resistant
  • Stress crack resistant
  • Excellent insulating properties
  • Excellent dielectric properties

 

Grades

  • Copolymer
  • Homopolymer
  • Flame/Fire Retardant

NOTE: Several grades of this material are available. For additional information regarding this plastic, contact your Emco Industrial Plastics representative or call 973-862-4148.

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