About Us

We are a thriving medium-sized, second generation family business led by Christoph Kast, a graduate in business studies and son of the company’s founder Dr. Günther Kast.

KAST is one of the foremost manufacturers of technical textiles and industry leader for bookbinding materials based in Sonthofen, the southernmost city in Germany. The company’s success reflects in the supply and export of a wide range of products into almost eighty countries worldwide for nearly six decades.

Our Company

Individual business solutions combined with decades of know-how are just a couple of our key strengths.

KAST produces and develops technical textiles made of Glass, AR-Glass, Carbon, Aramid, Basalt, Cotton and Viscose among other fibers for a variety of applications.

The production of composites, special textile finishing, coating (e.g. rubber coating), imprinting, dyeing and manufacturing is always in compliance to specific customer requirements.

We are able to manufacture products for a wide variety of industrial areas and applications that fit all of your technical textile needs.

The people at KAST place great emphasis on service, DIFOT performance, quality stability and expert advice. All of this is possible thanks to the close cooperation with our machinery manufacturers, suppliers and of course our customers.


Our aspiration: “To cherish tradition, live up to values and to grow together with our customers and business partners in order to develop continuously”

Our Vision

Our aspiration: Tradition – Values – Growth

A South German, medium-sized family business with the tradition and values of more than 55 years combined with courageous visions and future-oriented goals.
This is the solid basis for the prosperous cooperation with our national as well as international partners.


The KAST Corporation will continue its corporate tradition to flourish and to secure the long-term existence and development of the company and its employees.

We strive for sustainable, qualitative and quantitative growth to secure our company’s existence and our independence.

To exploit synergies we are open to cooperate with customers, suppliers and scientific institutions.


Our Service


For individual product needs, KAST provides customer specific manufacturing from our technology-intensive and modern production facilities.

From weaving to coating, laminating to assembling, our innovative company enables the supply of textile solutions.

We constantly set new standards and see ourselves as problem solvers, endeavoring long-term partnerships through customer proximity, definite and clear agreements and mutual fairness.

The KAST Corporation advises and supports our valued customers in various ways to help them compete in today’s tough markets.


Our Promise

Our constant willingness to solve problems and to develop new concepts is complemented by our commitment to be economical, quality and reliability driven.

While working hard to your satisfaction we never lose sight on today’s important ecological aspects.

KAST’s emphasis is put on solid cooperation’s with customers, suppliers and employees since long-term partnership means security.

We are committed to do our best for our common ambitious goals and to develop ourselves even further every step of the way.

Our History


Foundation of the company by Dr. Günther Kast.

Immediate start of production, including the manufacture of Back Lining Paper for the bookbinding industry and Grosgrain Fabric for the garment industry.

Wrapping Cloths for use in dry cell batteries as well as woven self-adhesive Scrim Tape for plaster board constructions were manufactured using gauze.

1972 – 1990

Development of sales and marketing for plaster reinforcement glass grids and construction of a special finishing line for the manufacturing of technical textiles.


Christoph Kast, MBA joins the company´s management board.


Acquisition  of Tolnatext Bt, a long-standing Hungarian glass fabric supplier. This decision strengthened KAST’s position in the glass fiber sector all across Europe significantly.


Our special paper lined mull for industrial bookbinding was patented.


Completion of acquiring mobile fixed and current assets from the Leuze & Rilling Corporation in Wannweil.

A new company site on Fluhensteinweg in Sonthofen expanded the Kast Corporation even further.


Purchase of a production line from a long-standing Swedish supplier. Product range development was implemented especially in the segment of drywall construction.


Acquisition of a long-standing South German partner company. This accession complemented the graphical arts industry’s performance in the finishing and coating sector.


Inauguration of our logistics center at our Hungarian subsidiary on the newly acquired company site in Tolna.


Kastgroup reaches the milestone of 50 million square meters (≈ 59,800,000 yd²) in annual sales volume.


Foundation of Kast Technical Textiles USA.

Start-up of the company’s own hydropower plant for sustainable electricity.


60th anniversary of the Kast Corporation.


Construction of a further energy-optimized production hall and start-up of several new plants for the production of technical textiles at the subsidiary in Tolna/Hungary.

Our Certifications

Logo of german Association of climate-friendly medium-sized companies