Filava™ - The mineral based high performance fiber | 25.07.2019 | Im Browser öffnen

New Gruschwitz Newsletter
July 2019

The focus of this current edition is the product Filava™, a special filament yarn made of volcanic rock with very particular properties. This product is at the core of our new cooperation with the company Isomatex S.A. We are convinced that this newsletter edition also contains interesting information for you.

Filava™ - the mineral high performance fiber - an excellent substitute for aramids at high temperatures

Filava™ is a filament yarn made of enhanced volcanic rock, manufactured in a melt spinning process and contains various other mineral additives. Filava™ stands for high tensile strength in combination with excellent alkali and chemical resistance. In terms of its high temperature resistance of up to 730 °C and the compatibility with high temperature variations, Filava™ is superior to comparable glass and steel fibers. In addition, the material has a high E-modulus and can be used in many applications as a substitute for numerous aramid and carbon fibers.

Filava™ - potential applications

Filava™ is used in the following applications:
  • Fire and flame resistant clothes
  • Heat protection
  • Ballistics
  • Reinforcement of structural concrete
  • Wind energy or naval constructions
  • Cabling insulation
  • Chemical filters at high temperatures
  • Oil pipelines
  • etc.

Filava™ - Gruschwitz Textilwerke AG is the exclusive distributor

Since 1 June 2019, Gruschwitz Textilwerke AG is the exclusive distribution partner of Isomatex S.A. and there fore responsable for the converting and sale for large parts of Europe. Gruschwitz, with its expertise in converting and coatings, offers individual customized solutions by plying, twisting, winding and single yarn coating.

IIf you want to deepen your knowledge, or if you have any questions about the product range, as well as the various applications of Filava™, you will find more information here:

Be inspired by the numerous outstanding properties of Filava™. Maybe also your products can be optimized through the application of this high-performance fiber?

Are you interested in our products or do you have any questions or suggestions?
Please contact us!

Contact Gruschwitz

We look forward to hearing from you and working successfully with you in the future!


Albert Jeni
Segment Sales Manager (Indutech, Buildtech, Hometech)
T +49 (0) 7561 9098-666

Alexandra Lenz
Segment Sales Manager (Mobiltech, Protech)
T +49 (0) 7561 9098-554

Peter Wolfrum
Segment Sales Manager (Sewtech, Aerotech)
T +49 (0) 7561 9098-667

Wolfgang Peter
Segment Sales Manager (Sewtech)
T +49 (0) 7561 9098-663

David Kozma
Segment Sales Manager (Medtech, Indutech)
T +49 (0) 7561 9098-660

Gruschwitz Textilwerke AG
Memminger Str. 68
88299 Leutkirch im Allgäu

Vertretungsberechtigte Vorstände:
Klaus Gudat, CTO
Ditmar Schultschik, CEO
Juan Serrano-Mannsfeld, CSO

T +49 (0) 7561 9098-0
F +49 (0) 7561 9098-999

Amtsgericht Ulm | HRB 734349