Big 5 Construct Saudi 2024German Exhibitors Schwarzwälder Textil-Werke Heinrich Kautzmann GmbH

Schwarzwälder Textil-Werke Heinrich Kautzmann GmbH

Booth number: 3D57

About us


Schwarzwälder Textil-Werke Heinrich Kautzmann GmbH develops and produces high-quality fibres for different industries and applications.

As leading specialists in fibre fillers, short cut fibres, fibrids & pulp, as well as customised solutions, we process all fibre materials; from natural fibres to synthetic fibres through to high-tech fibres.

Thanks to over a century of experience, continuous research and strong customer-orientation, we are able to react flexibly to new requirements with our bespoke fibre solutions.


Schwarzwälder Textil-Werke Heinrich Kautzmann GmbH
Aue 3
77773 Schenkenzell

Phone:  +49 7836 570

Contact person:

Volker Mai
Senior Sales Manager
Phone: +49 7836 5747

Vasim Barkavi
Sales Manager
Phone: +49 7836 57893

Products & Services


Concrete fibres are functional additives used to increase tensile strength, impact strength, deformability, crack resistance and other mechanical properties of concrete.

Fibre Groups:

Synthetic Fibres:

  • Polyacrylonitrile
  • Polyamide
  • Polyester
  • Polyethylene
  • Polypropylene
  • Aramide
  • Carbon
  • Viscose
  • Lightweight filler

Mineral Fibres:

  • Basalt
  • Glass
  • Mineral Wool

Natural Fibres:

  • Cotton
  • Cellulose
  • Jute
  • Sisal
  • Flax
  • Hemp
  • Coconut

Construction Applications for STW fibres:

  • Precast concrete elements
  • Industrial floors
  • 3D printing concrete
  • Decorative concrete
  • Traffic areas
  • Shotcrete
  • Slatted floors
  • Bridge building
  • Coastal and port constructions
  • Underground constructions
  • Sustainable concrete
  • Furniture design concrete
  • Ready mix concrete
  • Lightweight concrete
  • Tile adhesives

Coating Applications for STW fibres:

  • Protective bitumen coating
  • Fire protection coating
  • Self-Leveling floors
  • Paints
  • EP/PU – Resins
  • Maritime coating protection

PAC 251/ 60 dtex/... TG - Polyacrylonitrile Short Cut Fibre

Technical fibres are the backbone of 3D concrete printing. The STW high modulus fibres are thick, robust fibres with a kidney-shaped cross-section. These properties help to increase the compressive and flexural strength of the concrete. The alkali, acid, solvent and weathering resistance of the fibre can provide long-term stability to the concrete matrix. The flowability of the concrete matrix is improved by adding PAC 251/ 60 dtex, which is essential for the 3D concrete pressure process.
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Polyacrylonitrile Short Cut Fibre PAC 251/ 60 dtex/... TG

3D printed STW Logo

PAC 251/ 2,1 dtex/ 6 MM F - Polyacrylonitrile Short Cut Fibre

Our PAC 251/ 2,1 dtex/ 6 mm F are specifically designed for binder mixtures and top layers of asphalt, for noise minimising coverings as well as for stone mastic asphalts. It can be used for the strengthening of road bitumen and polymer modified bitumen. The high UV resistance makes them ideal for outdoor applications with direct sunlight. Additionally, the fibres have a good heat and temperature resistance. The high toughness of the fibres provide a great resistance to crack propagation.
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Polyacrylonitrile Short Cut Fibre PAC 251/ 2,1 dtex/ 6 MM F

Asphalt applications

Stewathix - Polyethylene fibre

STW offers a range of high-quality anti-sagging and thixotropic agents based on polyethylene. The brand name Stewathix® stands for highly fibrillated polyethylene fibres (fibrids) which are offered in pure form and as a compound with amorphous silica. The use of Stewathix® is very versatile. The following list shows the applications in which Stewathix® is used:
• epoxy and polyurethane resin systems
• sealants
• mastics
• trowelling and spray-applied plasters
• cold bitumen
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Highly fibrillated Polyethylene fibrids (microscopic image)

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