Kalkstein Kalk Glarus

Swiss aggregate


Kalkstein Kalk Glarus

Swiss lime


Kalk Chemie Kunststoff

Swiss Lime

Chemistry & Plastics

Efficient chemical processes and innovative plastics thanks to the incomparably pure hydrated lime from KFN.

More about Chemistry & Plastics

Swiss Lime

Food & Medicine

Healthy, enjoyable food starts with white lime from our factory. It has been certified according to ISO 22000 for food and animal feed uses.

More about Food & Medicine
Kalk Industrie Bau

Swiss Lime

Industry & Construction

The buildings, roads and pathways of tomorrow are built using the finest Swiss white lime-products from KFN.

More about Industry & Construction
Kalk Landwirtschaft Umwelt

Swiss Lime

Agriculture & Environment

Sustainable farming and healthy growth made possible using the high quality, pure lime products by KFN.

More about Agriculture & Environment
Kalk Life Scienece

Swiss Lime

Life Science

You will find innovative ideas for health and quality-of-life-products in the pure white lime coming from KFN – lime that has been certified for food and drinking water uses. 

More about Life Science

Your Advantages

Product Quality plus incomparable service

  • Lime with calcium carbonate content reaching above 99%
  • Highest purity, lowest iron and lead content in Europe
  • Calcium hydroxide content reaching above 98%, remaining CO2 <0,7%
  • Extra fine calcium hydroxide for faster chemical reactions (100% < 0,02 mm)
  • High CaO-reactivity with t60-value under 40 seconds
  • Highest white level without black spots, 96,8% (Spectro Color, Ry)
  • Certified for food, animal feed and drinking water processes and products according to ISO 22000
  • Maintenance of highest quality standards ensured through quality management system.

About KFN

Pure Quality

Living from lime. Living with lime.

Kalkfabrik Netstal (KFN) is the only producer of white lime products in Switzerland. Using the most modern technology and benefitting from decades of experience, we produce roughly 90,000 metric tons for customers worldwide at our site at Elggis mountain in the Swiss canton of Glarus. Our assortment of white lime products comes with a purity of more than 98% calcium carbonate. This makes fine white lime from KFN unique and ideally suited for numerous fields of application.

More about KFN

KFN News

Since 2012, the Kalkfabrik Netstal AG is certified for the production of lime products for food. Since that date, the high-quality calcium oxide and calcium hydroxide products of Netstal can be purchased as guaranteed food safe. The certification was a logic consequence of the high purity of KFN lime, known for many years.

read more

In the past years, thanks to the extraordinary purity of the KFN lime products, it has been possible to find more customers in the food, animal feed and pharmaceutical sectors. To guarantee a constant hygiene in the lime production to these customers, in 2011 the executive board decided to apply for the certification according to ISO 22000. The following year this intention has been successfully implemented: since 2012 KFN disposes of the respective certificate. In the meanwhile, the global customers’ demands have increased so much, that for the next deadline an extension to FSSC 22000* is sought.

read more

Soil treatment with lime has been known since ancient times. It was technically developed in the 1950s to consolidate the underfloor of motorways, railway track installations and airfields. This soil treatment could spread quite widely, as hereto only simple operations are needed and it is therefore affordable and very effective. Thanks to the soil improvement with lime, soils that are otherwise useless become good installable construction materials. Soil replacement as well as difficulties in finding a landfill are avoided. A standstill at the construction site in case of bad weather can be prevented with a soil treatment with lime and in this way, a continuous building implementation will be reached.

read more


Trust our expertise


KFN offers a wide range of services: we give competent advice, we offer comprehensive lab analyses and provide individual logistic solutions.

More Services