Quartzel® fiber is a homogeneous, non-porous, continuous, amorphous, ultra-pure silica glass with a SiO2 content ≥ 99.95%. Quartzel® veils are made from Quartzel® yarns which are chopped and then processed into veils through wet-laid process.
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Quartzel® Veil
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Main properties
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Low thermal expension and resistance to thermal shock
CTE= 0.54 10-6 K-1.
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Low loss material
Dk = 3.74 & Df = 0.0002 at 10 GHz.
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Integrity as insulating material
Up to 1050°C.
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Thermo-mecanical strength
Up to 300°C.
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Solvent resistance
Maintain mechanical properties even while soaked in toluene or MEK.
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Product portfolio
Available areal weight Binders* Typical thichness Available width Polyimide 10 g/m2 ● 90 µm Up to 1.6m 25 g/m2 ● 220 µm Up to 1.6m *Binder percentage <10%
*Other binders available on demand
Product properties
Typical tensile strenght:
Average measurement on 5 replica of 25g/m² veils
At room temperature
At 250°C
N/5cm N/5cm 25 g/m2 Polyimide 183 87 Thermal vacuum outgassing:
Test for the screening of space materials (ECSS-Q-70-02)
Material tested
TML (%)
RML (%)
WVR (%)
CVCM (%)
Acceptance limit achieved*
Veil 25gsm Polyimide
0.10 0.04 0.06 0.00 YES Test for the screening of space materials (ASTM E595)
Material tested
TML (%)
RML (%)
WVR (%)
CVCM (%)
Acceptance limit achieved*
Veil 10gsm Polyimide
0.31 N/A 0.06 0.02 YES Veil 25gsm Polyimide
0.31 N/A 0.02 0.01 YES TML: Total Mass Loss, including water vapor
RML: Recovered Mass Loss, mass loss without water vapor
WVR: Water Vapor Regained
CVCM: Collected Volatile Condensable Material, i.e. mass condensed on a cold-collector plate
*defined according to ECSS-Q-70-02 and ASTM E595 standards -
Dual-use
Dual-use disclaimer: Quartzel® products are all classified as a dual-use commodity by the European and US authorities. Therefore, an export license is required to export these goods to some countries. Our team will support you in this process. Read more about it here.
