Company Profile

Company profile

Since 1981, the KNOPP Group of companies has been demonstrating its innovative strength in all divisions and product lines, making it one of the leading companies in the production of high-quality and reliable admixtures for screed and concrete. Especially as a pioneer and technological leader in the field of screed admixtures, coupled with decades of experience, do not only set our products always new standards, also our first-class customer service sets always new benchmarks in the field of customer support as well.

The 4 product lines of the KNOPP Group of companies offer you the full range of binding agents and admixtures for screed and concrete as well as construction resins and coating products to increase efficiency, performance and quality.

  • CONTOPP® - admixtures and curing aids for cement screed
  • PRONTOPP® - anhydrite binding agents and ready-mixed dry mortar for the production of self-levelling calcium sulphate screed and semi-dry calcium sulphate screed
  • MTC - concrete admixtures for ready-mixed concrete, precast concrete elements and concrete blocks
  • SYSTOPP® - construction resins and coating products

Numerous national and international reference objects worldwide confirm and testify to the performance and reliability of the KNOPP Group and its products.

Company history
Foundation of MTC GmbH for concrete admixtures.
Construction of the expanded production facilities for liquid chemicals. Construction of the central laboratory.
Foundation of KNOPP GmbH Chemische Produkte for screeds.
Export of products to three European countries.
Construction of the first multifunctional production plant for powdered chemistry.
Foundation of KNOPP Vertrieb GmbH for international sales and distribution.
New construction of line production for pulverulent chemistry.
Expansion of the production facilities for liquid chemistry.
Distribution of KNOPP products in 10 European countries.
Construction of the production plant and bagging unit for bagged goods.
Distribution of KNOPP products throughout the Gulf region.
Construction of the production plant for ready-mixed dry mortars.
Production and distribution of reaction resin systems.
Sales of KNOPP products in Russia and other CIS countries.
Sales of KNOPP products in 35 countries.
KNOPP becomes part of the ARDEX Group from Witten.
KNOPP becomes a 100% subsidiary of ARDEX GmbH.
Merger of companies of KNOPP group into KNOPP GmbH



Research and Development

You snooze, you lose - that's why we are constantly working on developing new innovative and reliable products as well as refining our existing products so that you can always be sure that you are using the best state-of-the-art products which you can rely on without any ifs or buts.

Thanks to our decades of experience, we can draw on a sound knowledge base like no other, fully responding to the needs of customers and offering solutions before problems even arise. All the used raw materials and end products are constantly checked for consistent quality and according to strict standards.

Do you have a very specific task for us? Of course, we are also happy to offer and develop individual and tailor-made products for you if required.




Our products are developed at our headquarters in Dettelbach, Germany, and manufactured in several state-of-the-art plants and production facilities using innovative and environmentally friendly processes. Our modern buildings and facilities do not only enable sustainable and environmentally friendly production at the highest quality levels, they also offer our employees clean, safe and pleasant working conditions. Thanks to our in-house logistics, we make our products available to our customers as quickly and reliably as possible.




Our aim is to always offer and deliver the best products to our customers. We achieve this high standard through consistent planning, systematic control and monitoring of all the resources and activities in the processes, in accordance with the quality standard DIN EN ISO 14 000 ff, all the way from processing of the request and offer through to the handover of the products to the customer. All the production steps are closely monitored and documented. In addition, the quality standard ISO 9001:2000 is the guideline for achieving our high demands on the quality of our products, which we continuously monitor both internally and through an external auditor.

Thanks to regular training and further education, our employees are professionally qualified and motivated, which forms the basis for our high quality and environmental awareness and ensures plant safety, occupational safety and environmental protection.




Construction chemistry and sustainability - it doesn't have to be a contradiction!

Our philosophy and guiding principles are "green chemistry", which we live 100%. Our focus here is holistically on sustainability while maintaining the highest quality and effectiveness of our products.

Only we offer you the maximum environmental compatibility at all product stages, starting with the production using energy-saving and environmentally friendly processes, up to the finished products that have such low emissions that we are the only manufacturer of liquid screed admixtures certified and listed by the German Sustainable Building Council (DGNB).

All possible environmental risks in terms of

  • water and soil protection
  • immission protection
  • waste disposal
  • use of hazardous substances

are evaluated according to the environmental standard DIN EN ISO 14 000 ff and all the necessary measures are taken to protect the environment. 
In addition, our products make it possible to reduce or replace the water and cement content in concrete and screed systems and therefore they actively contribute to significantly improving the environmental balance of construction projects.

Our high demands on sustainability and environment, which determine and guide our daily behaviour, are additionally continuously monitored by an external environmental auditor.


For us at KNOPP and also at ARDEX, sustainable action means shaping the future in a responsible way in the long term. Using economic resources sparingly to preserve their value and to protect our environment – in a way that is based on fairness and respect. The idea of sustainability is firmly anchored in our corporate philosophy.



Career opportunities at KNOPP

Do you identify with the aims and values of the KNOPP and would like to become part of its success through your creativity, motivation and determination?

Thanks to our complete product range for screed and concrete and our passion for new ideas, KNOPP is expanding worldwide. Our market and technological leadership is particularly evident in our broad, innovative product range to increase efficiency, performance and quality.

Apply today and become a part of our team!

Current vacancies:

  • Currently no vacancies


No suitable position for you? Then we look forward to receiving your unsolicited application at:

Personnel department
Adolf-Oesterheld-Str. 1
97337 Dettelbach

or by email at:

You can call us at +49 9324 91990

Consumption calculator

for KNOPP products

Please refer to the technical datasheet under DOWNLOADS for more information about handling and mixing ratios.