NewsKÖSTER KB-Flex 200 now available in standard cartridges! - [2011-11-08]Our well known KÖSTER KB-Flex 200 Sealing Paste for the reliable waterproofing of pipe and cable penetrations is now available in two packaging sizes. Apart from the special cartridge system for professionals (850 g), we have complemented the system with a standard packaging form in order to better serve the non-professional market.
The new 310 ml standard cartridge (left picture) can be applied with any customary applicator gun and is available in boxes of 6 or 12 units. It is ideally suitable for non-waterproofing professionals like craftsmen for the use in small waterproofing projects. For more information please take a look at our product detail page and into the product flyer.
Johann J. Köster elected chairman of DEUTSCHE BAUCHEMIE - [2011-05-27]
DEUTSCHE BAUCHEMIE is organized in 40 internal working groups, project teams and committees, combining the expertise and experience of about 300 professionals of its member companies.
New KÖSTER system brochure! - [2011-04-01]KÖSTER has complemented its range of brochures by a further version.
In order to give architects, engineers, applicators but also building owners a comprehensive overview about how to properly waterproof their buildings from the outside External Basement Waterproofing comprises a broad overview about all KÖSTER solutions for the so called positive side waterproofing: - rubberized thick film sealants - cold applied self-adhesive membranes - rigid and flexible cementitious slurries In our accustomed style the brochure informs prospects not only about materials and application processes but also about all other important aspects for achieving a high quality waterproofing. Substrate preparation, suitable primers for different conditions, quality control and proper waterproofing of joints or details like pipe penetrations, wall floor junctions are covered by this system brochure.
KÖSTER BAUCHEMIE AG at BAU 2011 in Munich - [2011-02-09]Every second year in January Europe´s biggest construction trade fair opens its gates for visitors from all over the world, to inform about the latest and future developments in architecture and building materials. With almost 240.000 visitors from 150 countries this year´s event was the best visited BAU in its 50-year history. Architects, planners and international visitors contributed about 50% of the visitors which gave the exhibition an outstanding professional and international base.
The brand name KÖSTER is becomingmore and more well known – everywhere in the world where we have a presence.. Many international customers visited our stand in order to learn about our latest product developments and also to share their positive experience of KÖSTER Waterproofing Materials. More and more, the market accredits the KÖSTER philosophy of focusing solely on functionality and sustainabilityin waterproofing. Negative side waterproofing story of the current issue of WATERPROOF! Magazine deals with KÖSTER - [2011-01-14]
An easy to apply and cost efficient alternative is the waterproofing from the inside (negative side waterproofing). Since three decades KÖSTER BAUCHEMIE AG is intensively engaged in the research, development, realization of this method and is therewith one of the most experienced waterproofing specialists on the market. In its current issue the Amercian WATERPROOF! magazine deals with the usage and the characteristics of the aforementioned negtive side waterproofing systems. With its specific knowledge and experience in this subject, KÖSTER had the possibility to contribute substantially to the title story of the current issue. To read the full article click below: Negative Side Waterproofing: It´s Possible to Waterproof Leaking Basements From the Inside Award for the best waterproofing project in Turkey! - [2010-09-02]The Turkish Waterproofing Council IZODER awarded KÖSTER Yapi Kimyasallari for the best waterproofing project 2009 in Turkey. The 5 star hotel “SENSIMAR RESORT&SPA”, that is located on the southern Turkish coast in Side was entirely waterproofed with KÖSTER Waterproofing Products. Apart from 8000m² of basement, that were waterproofed with KÖSTER Deuxan 2C, swimming pools (KÖSTER NB Elastic 2C), joints (KÖSTER Joint Sealant FS), sewage treatment reservoirs (KÖSTER NB 1 Grey), wet rooms (KÖSTER BD 50 System), balconies & terraces (KÖSTER KBE + KÖSTER KB-Pur 214) and even repair works (KÖSTER Repair Mortar) were carried out with our systems.
KÖSTER International Symposium 2010 - [2010-08-13]
During the 4th and the 7th of August 2010 the international KÖSTER Symposium was held at KÖSTER headquarters in Aurich, bringing together construction professionals from all over the world. For 3 days KÖSTER partners and waterproofing specialists from various countries were able to exchange practical experiences and discuss the latest market trends of the waterproofing industry.
The main topics during this year´s KÖSTER Symposium were concrete protection, concrete repair and new technologies for the waterproofing of civil engineering Dr. Christian Wulff visits KÖSTER in Aurich - [2010-07-01]
Outside the training center Johann Köster presented several of our products and systems to Mr. Wulff, at the same time explaining to him the field of application and showing the practical uses. In order to express our strong orientation to international business KÖSTER showed 50 reference boards from its representatives around the world. These recently developed products are a very positive symbol for medium-size companies in Germany. Constant research and development is one of the key factors in being competitive and successful in the future. New product: KÖSTER Sewer and Shaft Mortar - [2010-06-03]For restoration works under difficult conditions like in sewers and shafts KÖSTER BAUCHEMIE AG has developed the KÖSTER Sewer and Shaft Mortar. The material has been designed to meet the very specific requirements of such surroundings. Apart from its high compressive strength, the material provides a good chemical resistance and a short curing time even under very humid conditions. As old sewers and shafts are oftentimes in a very bad condition the applicable layer thickness of a material is very important. The minimum layer thickness of KÖSTER Sewer and Shaft Mortar in order to reach a watertight coat is 4mm while the material can be applied in layers up to 3 cm.
The KÖSTER Oil Removal System - [2009-12-07]KÖSTER OIL REMOVAL SYSTEM (ORS) Due to various activities, industrial floors for example in shipyards, workshops or the oil industry can be contaminated with oil/ fat. KÖSTER has developed a unique oil-removal and containment treatment process to rehabilitate concrete surfaces making them suitable to receive any type of flooring system. The KÖSTER Oil Removal System (ORS) consists of two components: The KÖSTER ORS-D has the ability to penetrate deep into the concrete surface to extract oil and/or hydrocarbon based compounds leaving a clean surface for the ORS-C coating. Both products combine to provide a dry, uncontaminated surface which is fit to receive flooring/coating systems. This system has already proven its effectiveness in numerous projects in the USA and Europe: ORS installation report: Training facility (USA) [Download] Project completion: Protective coating of cooling towers in Harbin, China - [2009-10-21]China’s rapid economic growth has increased the need for electricity many fold over the past decade. The economic growth has also increased the awareness of environmental issues and pollution. In the energy sector, this has caused the trend of changing from traditional smoke stacks to cooling towers through which the flue gas is led. These cooling towers use a different principle whereby the dry flue gas is led through a lime-water bath. The treated flue gas has a pH value of approx. 3 which will attack the concrete of the cooling tower if left unprotected. The Harbin power plant is a joint venture between Datang Power Corporation and Harbin Power Company.
The total surface area of the two cooling towers to be protected was 110,000 m². The remote location and shape of the cooling towers made installation difficult.
KÖSTER NB 1 Grey and KÖSTER Polysil® TG 500 were selected to coat and protect the cooling towers internal side and KÖSTER NB 1 Grey was selected for the external side. For the final paint of the towers SOVACRYL was utilized. Apart from its weatherproofness this paint is open to water vapor diffusion and slows down carbon dioxide penetration. The main reasons why KÖSTER NB 1 Grey was chosen are the characteristics of the product: KÖSTER NB 1 Grey penetrates into the substrate and waterproofs it while still being open to vapour diffusion. Thus, the coating keeps the water out while it does not trap the vapour under the coating. Together these characteristics promote bonding and prevent delamination of the coating. Also, KÖSTER NB 1 Grey is completely UV-resistant and the acid resistance of the proposed system is sufficient to withstand the stresses which are to be expected. Another reason for selecting KÖSTER NB 1 Grey was the ease of application and the fact that it could be both sprayed and brush applied. It was also considered a great advantage that it can be applied on a wet substrate which would make surface cleaning and weather considerations much easier to handle. In the end, it was decided to hand apply KÖSTER NB 1 Grey and KÖSTER Polysil® TG 500 because the applicator was unable to get licenses to use the heavy spraying equipment up on the towers. The solution was to use a team of highly skilled and experienced specialists in abseiling – all with statutory licences - to brush apply KÖSTER NB 1 Grey and to spray apply KÖSTER Polysil® TG 500 using ordinary hand carried liquid sprayers. Although the team was experienced, the strong winds made installation difficult; many procedures had to be revised to avoid compromising safety and quality. Another important factor was the fact that Harbin is located in the Northeast of China. It is known to be one of the coldest cities in the World and damages to structures caused by frost are common. With KÖSTER NB 1 Grey, the track record for the past 25 years is unblemished and countless structures have been protected against water and frost damage over the years.
While many cooling towers are planned or under construction, this is only the third cooling tower project in China and we are proud to announce that our affiliate Beijing KÖSTER International Chemistry Co., Ltd has finished this project successfully. Reference: China, Heilongjiang province, Harbin, Power plant Reference letter of the customer: (Mandarin) Reference letter of the customer: (English) New KÖSTER system brochure - [2009-10-07]
Please find the brochure here.
New case study from Bulgaria: - [2009-09-11]KÖSTER KB-Pur Gel is a water activated polyurethane gel for curtain- and area-injections as well as for waterproofing expansion joints. The very special features of this material make it suitable for a wide range of applications. Depending on the amount of water added a highly elastic, waterproof massive or respectively foam-hydro-gel is formed. KÖSTER KB-Pur Gel is chemically stable, does not contribute to corrosion and does not emit groundwater polluting substances. The following case study from Bulgaria is a good example of the adaptability of this product to the requirements of special waterproofing projects. [show case study] New partner in Latvia - [2009-05-19]
Exhibition report: KÖSTER at the Iran Oil Show - [2009-04-27]KÖSTER BAUCHEMIE AG was exhibitor at the Iran Oil Show between the 22nd and the 25th of April. Our local partner Dorfak Chemistry Structure was very satisfied regarding the amount of visitors at our booth. The interest in different and special waterproofing solutions was very strong and with its broad range of products KÖSTER was able to offer suitable solutions to the prospects` necessities. This very positive performance will help us to further strengthen our brand and our high quality image in Iran.
KÖSTER BAUCHEMIE AG: One of the top companies in the county of Aurich - [2009-03-23]
New partner in Portugal - - [2009-03-06]The KÖSTER Group´s expansion continues. Since March 2009 KOSTER IMP represents our company on the Portuguese market. “IMP” stands for Sistemas de Impermeabilização, thus waterproofing systems. The managing director, Mr. Hugo Miguel Vieira Torres, has many years of experience in the Portuguese waterproofing market. Together with Mr. Torres we are planning to establish our brand in Portugal and therewith strengthening our European network. KÖSTER was exhibitor at the 18th biogas trade fair in Hannover - - [2009-02-27]
This year KÖSTER BAUCHEMIE was again exhibitor at this fair. KÖSTER BAUCHEMIE is one of the leading manufacturers of concrete protection systems for the biogas sector. KÖSTER BAUCHEMIE offers solutions for all the different biogas operating procedures. Additionally restoration systems and joint grouts for the very special biogas market are being offered. For detailed information or technical questions please contact our Biogas System Manager, inquiries in German can be sent directly to: Mr. Friedrich Ströhlein (stroehlein@koester.eu). Inquiries in English can be sent to j.kettner@koster.eu . KÖSTER Thailand: Assignment in the royal palace - - [2009-02-26]
KÖSTER Thailand recently carried out a project in the royal palace in Bangkok. We were contracted to find a solution for moisture problems in the Ladawan palace, which belongs to the royal palace complex and today is the home of the Crown Property Bureau. The problems were solved by applying KÖSTER products. The ongoing damage of walls and plaster were stopped by installing a horizontal barrier with KÖSTER CRISIN® 76. Additionally the KÖSTER Anti-Mould-System was applied as a vapour barrier on the inner walls. Reference 1: The horizontal barrier Reference 2: The Anti-Mould-System |
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We are very proud to announce that on the 27th of May 2011 DEUTSCHE BAUCHEMIE e.V. (association of German construction chemical companies) has elected Johann J. Köster, founder and Managing Director of KÖSTER BAUCHEMIE AG, as chairman of their executive board.
structures. Speakers from 7 different nations contributed to the success of this event and gave the audience an insight into new developments and techniques of the waterproofing industry. Among the excellent speakers KÖSTER was very proud to welcome outstanding and renowned concrete experts like Prof. Dr. Ing. Bern Hillemeier (picture) from the Technical University of Berlin and Prof. Dr. rer. nat. Karsten Schubert from the University of Karlsruhe at its symposium.
1. Before the application of KÖSTER ORS the surface is to be prepared thoroughly. The substrate must be sound and absorptive and should furthermore be free of Alkaline Silica Reactive or sulphurous compounds. Any type of surface contamination such as adhesives, adhesive residue, old coatings, curing compounds and underlayments must be removed completely by shot blasting prior to the ORS treatment being applied.
2. Subsequently to the surface preparation the substrate is cleaned from its oil contamination. KÖSTER ORS-D foam is laid down in a “carpet” onto the concrete. A spread rate of about 0.1 – 0.2 liters per square meter is required for the ORS-D (based on a total two coat application). A wait of about 1 hour allows its ingredients to penetrate the capillary system of the concrete cap and float the contained oil to the surface. After the waiting time, spinning operations begin. This phase uses hot water and a deck spinner washer to clean the surface from the oil that has been washed out and the remaining foam. After the rinse a squeegee and a vacuum is used to remove all standing water from the area to be coated. Depending on the level of contamination more KÖSTER ORS-D treatments can be necessary.
3. The KÖSTER ORS-C primer is now applied onto the cleaned but still moist concrete. It has a very low viscosity and can therefore be applied with a roller. A spread rate of about 0.4 liters per square meter is required for the KÖSTER ORS-C. After a curing time of about 15-20 minutes silica sand is broadcasted into the still wet coating. A spread rate of 0.5 kg of sand (mesh size 0.3-0.7 mm) per square meter is required. The sand is important for the adhesion properties regarding the subsequent coatings. After a minimum curing time of 12 hours (depending on the temperatures) the remaining sand can be swept up.
4. After the completion of this process the cleaned and primed concrete is ready to receive a top coating. KÖSTER Self-Levelling Floor 15 is a single-component levelling that is applied in a layer thickness of 2-8mm. It can be walked on after only 3 hours of curing time and it is abrasion and wear resistant. KÖSTER Self-Levelling Floor 15 is used for levelling out mineral substrates inside and outside, underneath tiles, ceramic coverings, screeds - also for wet rooms, balconies and terraces. KÖSTER Self-Levelling Floor 15 is not a decorative final coating.
On the 18th of May we signed a sole selling agreement with our partner 
The county of Aurich recently published a brochure, which introduces the region´s economical and technological excellence. Formerly the city used to be rather introspective and was characterized by its public authorities. But within the last decades, Aurich developed to become an industrial location, accommodating a broad range of industries. The brochure gives 20 outstanding examples of this development and presents them to the general public. One of these 20 companies is KÖSTER BAUCHEMIE AG. With its local production and development, it represents the innovative strength of an economically underdeveloped region. And with its activities in 48 countries worldwide it is a good example for the internationality and entrepreneurial spirit of East Frisia´s businessmen.
From the 3rd to the 5th of February European biogas experts met in Hannover to attend the 18th biogas trade fair which took place in the context of the annual conference of the German biogas association. 3100 experts and visitors informed themselves about the technical, political and economical expectations of the biogas sector. The mood during the exhibition showed, that despite the economical crisis this industry can look forward to the coming months due to the political conditions. This fair is popular among experts throughout Europe. Visitors from many European countries visited the show.
