ZetexPlus Fibre

ZetexPlus Fibre

ZetexPlus glass fibre presentation

Newtex has offered a wide range of fire and temperature resistant fabrics since 1978. The quality and performance of Zetex ® fibres are now unmatched. The wide and varied range of textiles guarantees resistance to temperatures up to 1095°C. Zetex ® and ZetexPlus ® are insulation and thermal protection textiles. They are used in a wide range of industrial applications, seals, compensators, thermal reflectors, curtains, blankets and protective clothing. Made from textured fibreglass, these textiles not only withstand heat, they can tolerate up to -73°C. The thermal conductivity factor of 0.05 W.m -1 .K -1 ensures the insulating quality of the fibre. Zetex fibres show high dielectric strength, excellent chemical resistance, and proven rot-proof properties. Finally, in addition to the numerous treatments that can be carried out to improve the properties of Zetex ® products, they have essential mechanical properties. Chemically inert, the fibre has good tensile and abrasion resistance; with an equal diameter, Zetex ® fibres have twice the resistance of steel wire. 

Manufacturing

Zetex ® fibreglass is initially manufactured as standard fibreglass. After manufacture of the smooth wire, it is opened by compressed air through a special injector to give it volume. This texturing gives it its unique properties, especially thermal. This textured thread can then be braided, coated or woven into strips or fabrics. ZetexPlus ® fibre is a Zetex ® fibre treated with an inorganic coating system to insulate it. This sheath conducts heat radially at high temperatures and prevents the silica from melting. 

Mecanical properties

For an equal diameter, Zetex® fibre is twice as strong as steel wire. The mechanical quality of the Zetex® fabric offers all kinds of thermal protection. ZetexPlus® fibre outperforms Zetex® fibre by 40%. 

Properties

Units

Thread Zetex® 

Tensile resistant thread 

MPa

3400

Elongation

%

2,5

Elastic modulus 

GPa

73

Water retention 

%

0

Electrical properties

ZetexPlus® fibre has a high dielectric strength and a low dielectric constant.

Properties

Units

Thread Zetex®

Dielectric constant at 1MHz/1GHz 

 

6,4/6,13

Volume resistivity 

Ω/cm

1014

Area resistivity 

Ω/cm

1013

Electrical rigidity

kV/mm

8 à 12

Thermal properties

ZetexPlus® fibre products have outstanding thermal properties. Resistant up to 1095°C, the insulating power of ZetexPlus® fibre is one of the best available.  

Properties

Units

Thread Zetex®

Softening temperature 

°C

840

Usage limit temperature 

°C

620

Linear thermal expansion coefficient 

K-1

5,3.10-6

Specific heat at 20°C/200°C 

J/g.K

0,764/0,958

Thermal conduction

W/m.K

0,74

ZetexPlus ® fibres can also withstand temperatures of -73˚C. 

Zetex®Plus Fabric

Final Advanced Materials provide a wide range of Zetex®Plus Fabrics for high temperature applications, thermal insulation and fire resistance
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Zetex®Plus Tapes

ZetexPlus® tapes meet all the requirements of fire resistance. They are mainly used for thermal insulation and sealing of industrial furnaces.
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