Once again, FilSpecTM innovates by launching FireFilTM, a fibreglass core yarn that is flame resistant, cut resistant and tear resistant.

Textiles created from this yarn exceed the highest standards of the fire-resistant fabric industry, offering triple protection to firefighters and industrial workers exposed to various dangers.

An ingenious design

Thanks to an innovative spinning technology, a highly flame-resistant fibreglass filament is inserted in the centre of the yarn. The outer layer of this yarn, made of high-performance textile fibre, is carefully chosen so as to render the composite yarn more effective.

The fibreglass core yarn is then woven to create a FireFilTM fabric that is flame resistant, cut resistant and tear resistant.

Dessin technique



FireFilTM advantages

  • Fibreglass makes FireFilTM resistant and protective
  • No after-flame
  • Does not melt or drip
  • Yarn does not shrink in extreme heat*
  • High tear strength: 200% higher than the NFPA 1971–2013 requirement*


  • Resistance of over 1,000 newtons in warp direction and 1,450 newtons in weft direction*
  • Flexible modular technology, according to the required performance and individual needs

*According to tests undertaken by Underwriters Laboratories (UL) on a 7.2 OSY fabric.



Tests carried out by Underwriters Laboratories Logo UL


Graphique Force de rupture


Graphique Resistance aux déchirures


Graphique Longueur carbonisée


Graphique Resistance aux déchirures


Graphique Rétrécissement


Choose FireFilTM, a canadian solution that exceeds standards and ensures protection against flames, cuts and tears at a competitive price.

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FireFil Welders

FireFilTM has been adapted to meet the specific needs of welders exposed to sparks and molten-hot metal shavings.

FireFilTM Welding is a coated glass-core yarn designed to both protect welders and improve their comfort.

With its moisture-wicking properties, the fabric made with FireFilTM feels comfortable against the skin and can be used to produce coveralls or protective aprons.

« My coveralls are light and comfortable. I’ve worn them in a lot of different conditions and they passed the test every time. They’re much more breathable than my old coveralls, which will be great in the summer!
- Marcellin, welder at Normex Métal.


available Resources




Visit our Flame Resistance, Electric Arc Resistance, and Humidity Control pages to learn more about the properties of FilSpec’s products.

Do your own comparison of our different products.
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