Oratex Specifications and Technical Data

Independent Weight Comparison

    Bearhawk design engineer Bob Barrows made three test panels, one with Oratex 6000, one with 2.7 ounce Ceconite with very light coatings and one panel with normal coatings. The Oratex panel weighed 12 grams, the panel with light coatings weighed 20 grams and the panel with normal coatings weighed 30 grams. On an LSA weight savings are critical, so they were very pleased with the weight savings.

Oratex6000

  • Material: Modified polyester
  • Material thickness: Approx. 170 µm (.0067 in.)
  • Weight: Approx. 140 to 160 g/m² (0.459 – 0.524 oz/ft²)
  • Tensile strength lengthwise: Min. 1300 – 1600 N/50 mm
  • Tensile strength crosswise: Min. 1100 – 1400 N/50 mm
  • Breaking extension lengthwise: 12 – 20%
  • Breaking extension crosswise: 12 – 20%
  • Tear propagation load lengthwise: 26 – 32 N
  • Tear propagation load crosswise: 28 – 34 N
  • Burst strength: > 1000 kPa (> 145 psi)
  • Burst elevation: > 15 mm (> 0.59 in)
  • Shrinkage lengthwise: 9 – 13%
  • Shrinkage crosswise: 8 – 12%
  • Flammability: Not flammable after application to airframe
  • Melting point: 250°C (482°F)
  • Air permeability: Airtight
  • Other characteristics: Fuel resistant, can be painted

Oratex600

  • Material: Modified polyester
  • Material thickness: Approx. 120 µm (.0047 in.)
  • Weight: Approx. 92 – 122 g/m² (0.301 – 0.4 oz/ft²)
  • Tensile strength lengthwise: 750 – 1050 N/50 mm
  • Tensile strength crosswise: 650 – 950 N/50 mm
  • Breaking extension lengthwise: 10 – 18%
  • Breaking extension crosswise: 11 – 20%
  • Tear propagation load lengthwise: 18 – 24 N
  • Tear propagation load crosswise: 16 – 22 N
  • Burst strength: 500 – 700 kPa (73 – 102 psi)
  • Burst elevation: Approx. 14 – 18 mm (0.55 – 0.71 in)
  • Shrinkage lengthwise: (338°F) 8 – 12% (reference temperature 170°C)
  • Shrinkage crosswise: (338°F) 8 – 12% (reference temperature 170°C)
  • Flammability: Not flammable after application to airframe
  • Melting point: 250°C (482°F)
  • Air permeability: Airtight
  • Other characteristics: Fuel resistant, can be painted