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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, WisconsinProperty 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
