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Nomex® – a synthetic aromatic polyamide polymer – is a heat-resistant insulation that offers an excellent combination of strength, durability and dielectric properties. This thermoset material is moisture-resistant and cryogenic-compatible with good mechanical stability. Nomex® has been widely adopted as electrical insulation for liquid and dry transformers, motors and generators.
- Excellent heat, chemical and radiation resistance
- High dielectric strength
- Mechanical stability
Applications for Nomex® Thermoset Polymer
- Circuit boards
- Electrical equipment
We also are a distributor of Nomex material. Contact us about fulfilling your material needs and to get a quote.
Dielectric Manufacturing, Richfield, Wisconsin USA dielectricmfg.com Nomex Synthetic Aromatic Polyamide Polymer Material Properties Provided By Dielectric Manufacturing, Richfield, Wisconsin
Property 10 mil 12 mil 15 mil Test Method
Nominal Thickness (mm) 0.25 0.30 0.38 Typical Thickness *1 ml 10.2 12.2 15.2 ASTM D-374
mm 0.26 0.31 0.39 ASTM D-374
Basis Weight (g/m2) 249 309 397 ASTM D-646
Density (g/cc) 0.96 1.00 1.03 Tensile Strength (N/cm) MD 285 378 459 ASTM D-828
XD 152 196 252 Elongation (%) MD 19 22 19 ASTM D-828
XD 15 17 14 Elmendorf Tear (N) MD 6.0 7.4 9.5 TAPPI-414
XD 10.8 14.2 17.2 Initial Tear *2 Strength (N) MD 71 93 116 ASTM D-1004
XD 42 55 74 Shrinkage at 300°C (%) MD 0.4 0.4 0.3 XD 0.1 0.2 0.2
Dielectric Manufacturing, Richfield, Wisconsin USA dielectricmfg.com
Nomex Synthetic Aromatic Polyamide Polymer Material Properties Provided By Dielectric Manufacturing, Richfield, Wisconsin
MD = machine direction of paper XD = cross direction of paper
1 Method D; 17 N/cm2
2 Data presented for Initial Tear Strength is listed in the direction of the sample per ASTM D-1004. The tear is 90 degrees to sample direction – hence for papers with a higher reported MD ITR, the paper will be tougher to tear in the cross direction.