Environmental Dynamics International (EDI)
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EDIEthylene Propylene Diene Monomer (EPDM) & Armor-Coated Membrane

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Available for FlexAir Pro tube, disc, and panel diffusers, as well as FlexAir Basic disc diffusers. Temperature resistance up to 240 °F (115 °C). Chemical resistance for municipal and most industrial applications. Armor-Coated™ technology available for specialized applications. UV protection incorporated in the compound. Low dynamic wet pressure. Low oil construction for membrane stability. No inorganic fillers for maximum performance. High concentration of polymers for superior service.

  • Hardness Shore A: 58 +/-5
  • Specific Gravity: < 1.20
  • Tensile Strength, psi: >1150 psi
  • Tensile Modulus, @100% elongation: > 225 psi
  • Ultimate Elongation: > 600%
  • Tear Strength, Die T: >70 lbf/in
  • Surface Ozone Cracking Resistance @50 ppm: Non Cracking
  • Low Temperature @ -40°C: Non Brittle
  • Hardness Shore A : 58 +/- 5
  • Specific Gravity : < 1.20
  • Tensile Strength, psi : > 7.9 MPa
  • Tensile Modulus, @100% elongation : 1.38 +/- 0.34 MPa
  • Ultimate Elongation : > 600%
  • Tear Strength, Die T : >12 kN/m
  • Surface Ozone Cracking Resistance @50 ppm : Non Cracking
  • Low Temperature @ -40°C : Non Brittle
  • Hardness Shore A: 60 +/-5
  • Specific Gravity: < 1.25
  • Tensile Strength, psi: > 1300 psi
  • Tensile Modulus, @100% elongation: 390 +/-40 psi
  • Ultimate Elongation: > 400%
  • Tear Strength, Die T: >60 lbf/in
  • Surface Ozone Cracking Resistance @50 ppm: Non Cracking
  • Low Temperature @ -40°C: Non Brittle
  • Hardness Shore A: 60 +/-5
  • Specific Gravity: <1.25
  • Tensile Strength, psi: >9.0 MPa
  • Tensile Modulus, @100% elongation: 2.69 +/- 0.28 MPa
  • Ultimate Elongation: > 400%
  • Tear Strength, Die T: >10.5 kN/m
  • Surface Ozone Cracking Resistance @50 ppm: Non Cracking
  • Low Temperature @ -40°C: Non Brittle
  • High temperature resistance up to 350 °F (177 °C)
  • Excellent uniformity and distribution of released air bubbles
  • Formulated for application specific condition
  • Good chemical compatibility in most municipal and industrial application
  • Available for tube and disc diffusers
  • UV protection inherent in the compound
  • Low dynamic wet pressure (DWP)
  • Note: Not recommended for some ON/OFF applications
  • Hardness Shore A: 58 +/-5
  • Specific Gravity: < 1.20
  • Tensile Strength, psi: >1150 psi
  • Tensile Modulus, @100% elongation: > 225 psi
  • Tensile Modulus, @300% elongation: > 550 psi
  • Ultimate Elongation: > 400%
  • Tear Strength, Die T: > 40 lbf/in
  • Surface Ozone Cracking Resistance @50 ppm: Non Cracking
  • Low Temperature @ -40°C: Non Brittle
  • Extractable Oil Content: < 25%
  • Hardness Shore A: 58 +/-5
  • Specific Gravity: < 1.20
  • Tensile Strength, psi: > 7.9 MPa
  • Tensile Modulus, @100% elongation: > 1.55 MPa
  • Tensile Modulus, @300% elongation: > 3.79 MPa
  • Ultimate Elongation: > 400%
  • Tear Strength, Die T: > 7 kN/m
  • Surface Ozone Cracking Resistance @50 ppm: Non Cracking
  • Low Temperature @ -40°C: Non Brittle
  • Extractable Oil Content: < 25%
  • Hardness Shore A: 55 +/-5
  • Specific Gravity: < 1.20
  • Tensile Strength, psi: > 1300 psi
  • Tensile Modulus, @100% elongation: > 150 psi
  • Tensile Modulus, @300% elongation: > 425 psi
  • Ultimate Elongation: > 400%
  • Tear Strength, Die T: > 35 lbf/in
  • Surface Ozone Cracking Resistance @50 ppm: Non Cracking
  • Low Temperature @ -40°C: Non Brittle
  • Extractable Oil Content: < 15%
  • Hardness Shore A: 55 +/-5
  • Specific Gravity: < 1.20
  • Tensile Strength, psi: >9.0 MPa
  • Tensile Modulus, @100% elongation: > 1.03 MPa
  • Tensile Modulus, @300% elongation: > 2.93 MPa
  • Ultimate Elongation: > 400%
  • Tear Strength, Die T: 6.1 kN/m
  • Surface Ozone Cracking Resistance @50 ppm: Non Cracking
  • Low Temperature @ -40°C: Non Brittle
  • Extractable Oil Content: < 15%