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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.
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
