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E-Glass Fibre Felts, up to 700 °C
E-glass fibre is valued for its resistance to high temperatures and its excellent electrical insulation properties. This rot-proof material can resist the main chemical agents and remains dimensionally stable against strong variations in humidity and temperature. While glass filaments with a diameter of less than 3 µm are respirable and can build up in the respiratory system, filaments bigger than 9µm can irritate the skin. To prevent these risks, only glass fibre products made of filaments between 6 and 9 µm are proposed.
E-glass fibre needle felts offer excellent mechanical, chemical and dielectric properties. Moreover, these products can withstand operating temperatures up to 550 °C and peak temperatures up to 700 °C.
The E-glass fibre needle felts provided by Final Advanced Materials are untreated or available with an adhesive, steel or an aluminium finish. These different treatments improve the felts' properties, such as their resistance to cutting, wear, radiant heat or to splashes of molten metal.
These E-glass fibre products complement Newtex’s product range.
For more information regarding the availability, refer to the technical data sheet.
Applications of E-Glass Fibre Felts
- Acoustic insulation
- Thermal insulation
General Data on E-Glass Fibres
Technical Data on E-Glass Fibres
Physical variables included in this documentation are provided by way of indication only and do not, under any circumstances, constitute a contractual undertaking. Please contact our technical service if you require any additional information.
FAQs that can help you in this category
Felts made from carbon/graphite fibre are excellent at withstanding high temperatures, and are used up to 3,000°C. These felts are stable up to 2,000°C, but only in an inert, oxygen-free environment. Otherwise, they oxidise above 300°C. Unlike carbon/graphite felts, zirconia felts are resistant to temperatures up to 2,000°C, even in the presence of oxygen in the environment.
Final Advanced Materials' biosoluble fibre felts are a safe alternative to replace asbestos-based insulation or other refractory fibres. These fibres have low biopersistence, meaning the body can eliminate any inhaled fibre rapidly and naturally. These felts have a low thermal conductivity and a temperature resistance of up to 1,400°C, and are used primarily as oven coatings, but also as a customisable local thermal insulation.
The only felts capable of withstanding a continuous exposure to temperatures exceeding 1,500°C are ceramic (Al2O3), zirconia (ZrO2) or graphite fibre-based felts. Each felt has specific constraints: graphite felts can only be used in an inert atmosphere or in a vacuum, while zirconia felts have poor mechanical properties, and ceramic fibre felts can only resist temperatures up to 1,650°C.
The other felt families (glass, silica, biosoluble, RCF, basalt, etc.) cannot withstand a continuous exposure to more than 1,260°C.
The material has a thermal conductivity of 0.06 W/m·K at 200°C, and 0.30 W/m·K at 1,000°C. It is substantially lower than that of conventional refractory materials (often between 1 and 2 W/m·K at these temperatures). The felts offered by Final Advanced Materials are available in several densities, ranging from 64 to 160 kg/m3. The higher the density, the lower the conductivity which can go as low as 0.20 W/m·K at 1,000°C.