PEI and Ultem Injection Molding

High-performance thermoplastics that offer high heat resistance, chemical resistance, and mechanical strength. 

Get PEI Injection Molding Parts

Product Description

PEI is a high-performance thermoplastic that offers high heat resistance, chemical resistance, and mechanical strength. A popular material for harsh environments, PEI is also referred to as its brand name, Ultem. 

We offer four types of PEI via our injection molding service: 

  • RPT 2100 LF: 10% glass fiber-filled, low flow polyetherimide. Has good tensile and flexural strength, and high impact resistance. Good dimensional stability, with high chemical resistance and excellent flame retardant. 
  • Ultem 2200: 20% glass fiber-filled, standard flow polyetherimide. ECO Conforming, UL94 V0 and 5VA listing. NSF 51 listing, WRAS certification in recognized colors.
  • Ultem 1000: amorphous, transparent plastic. This inherently flame-retardant resin has UL94 V0, V2, and 5VA ratings and is RoHS compliant. ULTEM 1000 resin is an unreinforced general-purpose grade offering high heat resistance, high strength, and modulus and broad chemical resistance up to high temperatures. 
  • Ultem 2300: 30% glass fiber-filled, standard flow polyetherimide. ECO Conforming, UL94 V0 and 5VA. NSF 51 listing, WRAS certification, KTW certification in recognized colors. 

Material Properties of Injection-Molded PEI and Ultem

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  Tensile Strength Tensile Modulus Hardness (Rockwell-M) Impact Strength (notched) Flammability Glass Transition Temperature
Test Method D 638 D 638 D 785 D 256 Ul94 ISO 11357
RTP 2100 LF 15.2 KSI 430 KSI 109 1.0 ft-lbs/sq. in.  V-0 @ 1/16 in 
 423°F 
Ultem 2200 (20% GF) 19 KSI 1,000 KSI 114 1.20 ft-lbs/sq. in. V-0 @ 0.0160 in.  423°F 
Ultem 1000 16 KSI 520 KSI 109 1.00 ft-lbs/sq. in.  V-0, V2, 5VA 423°F 
  Tensile Strength Tensile Modulus Hardness (Rockwell-M) Impact Strength (notched) Flammability Glass Transition Temperature
Test Method D 638 D 638 D 785 D 256 Ul94 ISO 11357
RTP 2100 LF 105 MPa 2,965 MPa 109 53 J/m2 V-0 @ 1.5mm
 217°C 
Ultem 2200 (20% GF) 131 MPa 6,895 MPa 114 64.1 J/m2 5VA @0.0750 in.  217°C 
Ultem 1000 110 MPa 3,580 MPa 109 53 J/m2 V-0, V2, 5VA 217°C 

Key Benefits of PEI

  • Excellent temperature resistance and flame retardance.
  • Good flowability.
  • Good mechanical strength and dimensional stability. 
  • Can be sterilized.

 

Other materials for Injection Molding

We offer about 120 plastics, elastomers, and LSR for injection molding. 

Learn more 

Applications for PEI Injection Molding

PEI is a go-to material for multiple industries for the reasons previously listed. It handles harsh environments and exposure to chemicals well and can be sterilized to maintain use in medical settings. 

  • Aerospace
  • Automotive
  • Chemical processing equipment
  • Consumer electronics
  • Electrical
  • Medical
  • Sporting goods