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Formex® Characteristics
Formex® is a cost-effective electrical insulator and barrier. It can be die cut, heat formed, thermoformed and machined. Formex® can be folded repeatedly without cracking or splitting. It can also be scored and folded to fabricate 3-D parts.
This flame-retardant polypropylene thermoplastic material offers superior dielectric strength and chemical resistance. It has a UL 94V-O flame class rating and can withstand continuous use temperatures up to 239 degrees Fahrenheit. Characteristics include:
Excellent dielectric strength- UL 94V-O flame class rating
- Superior score and folding ability
- Economical
Applications for Formex®
- Electrical insulation
- Barriers
- Electrical switch gear
- Air flow components
Contact a Dielectric Manufacturing knowledge expert to discuss the use of Formex for electrical insulation for your application. Call 800-367-9122 or email sales@dielectricmfg.com.
We also are a distributor of Formex. Contact us to discuss how we can fulfill your Formex material needs.
Formex Polypropylene Material Properties
Dielectric Manufacturing, Richfield, Wisconsin USA dielectricmfg.com Formex Material Properties Provided By Dielectric Manufacturing, Richfield, Wisconsin
Property Metric units English units
General
Density 982 - 1.16e3 kg/m^3 0.0355 - 0.0418 lb/ft^3
Mechanical
Yield Strength 2.37e7 - 3.15e7 Pa 3.44 - 4.57 ksi
Tensile Strength 2.1e7 - 2.3e7 Pa 3.04 - 3.33 ksi
Elongation 0.258 - 0.705 % strain 25.8 - 70.5 % strain
Hardness (Vickers) 7.85e7 - 8.24e7 Pa 8 - 8.41 HV
Impact Strength (unnotched) 1.81e4 - 4.04e4 J/m^2 8.62 - 19.2 ft.lbf/in^2
Fracture Toughness 1.41e6 - 1.48e6 Pa/m^0.5 1.28 - 1.134 ksi/in^0.5
Young's Modulus 1.5e9 - 2.08e9 Pa 0.218 - 0.302 10^6 psi
Thermal
Max Service Temperature 80.6 - 103 °C 177 - 218 °F
Melting Temperature 161 - 170 °C 322 - 338 °F
Insulator or Conductor Insulator Insulator
Specific Heat Capability 1.67e3 - 1.71e3 J/kg °C 0.399 - 0.407 BTU/lb. °F
Thermal Expansion Coefficient 5.6e-5 - 6.42e-5 strain/°C 31.1 - 35.7 µstrain/°F
Eco
CO2 Footprint 3.43 - 3.79 kg/kg 3.43 - 3.79 lb/lb
Recyclable Yes Yes
