Physical Properties

Property Test Method Unit Advantex Traditional Glass E-glass Density ASTM D1505 gr/cm

2.62 2.55 - 2.62Refractive Index 1.56 - 1.57 1.54 - 1.56 Thermal Linear Expansion 0 - 300°C ASTM D696 10-6 K -1 6 5.4Softening Point ASTM C338 °C 916 830 - 860 Fibre weight loss in 10% H2SO4 5.5 % > 40 % for 100 hours @ 96°C

in figures Impregnated Fibre Properties

Property Test Method Unit Advantex Traditional Glass E-glass Fibre Tensile Strength * ASTM D2343 MPa 2200 - 2600 2000 - 2500 Fibre Tensile Modulus ASTM D2344 GPa 81 - 83 76 - 80 Inter Laminar Shear Strengh ** ISO 14130 MPa 60 - 70 50 - 70 * These values are representative of 17µm - 2400 tex fibre, impregnated with epoxy resin ** These values are representative of epoxy unidirectional laminates with a glass weight fraction of 78 - 79%

The tables on this page show the performance of Advantex glass fibre with those of traditional E-glass The tables on this page compare the performance of Advantex glass fibre with those of traditional E-glass. It is worth noting that Advantex products have a significantly higher softening point,a 3-4% higher modulus and far superior corrosion resistance compared to traditional E-glass. The charts illustrate the stress corrosion resistance of a pultruded rod made with an iso polyester resin and a glass roving content of 75%. The static load was around 1100 Mpa. It can be seen that, in a 1N chloridric acid environment at room temperature (23°C), to reach a 50 year service life, the stress level should not exceed 12.7% of the static strength. At such stress levels the E-glass rod would only survive 3.7 days.

Stress rupture of pultruded rod in 1N Chloridric Acid

100101

1 10 100 1000 10000 100000 1000000

Isophtalic Polyester resin, Glass content by Weight : 75% Research, development and testing centre in Battice, Belgium