News

Find out which trade fairs we will be exhibiting at, our latest products, and all other company and industry news.

03.03.2021 — MESSEN

Wevo at trade fairs in China

March is the month of the electronics development and production trade fair Productronica China 2021 in Shanghai, and the China International Battery Fair (CIBF) 2021 in Shenzhen.

DETAIL

At both events, Wevo will be presenting customised solutions based on polyurethane, epoxy and silicone for casting, bonding and sealing.

Further information in our trade fair area.

    26.02.2021 — WEVO NEWS

    Suitable for drinking water: Wevo potting resin receives WRAS approval

    Clean drinking water is one of the most precious resources on the planet. For this very reason, the specifications for materials that come into contact with it are extremely stringent. A two-component potting compound from WEVO-CHEMIE GmbH has now been granted drinking water approval by the internationally recognised Water Regulations Advisory Scheme Ltd. (WRAS) and can therefore be used in the production of drinking water filters and for protecting electrical and electronic components used in the fields of drinking and process water.

    DETAIL

    According to Germany’s Federal Statistical Office, each individual in the country consumes around 123 litres of water per day. Maintaining a consistently high-quality water supply is essential and is ensured by carrying out analysis. One of the requirements for materials deployed in the drinking water sector is that they must not alter the drinking water in any way, for example, by contaminating it or changing its smell or taste.

    Wevo submitted a two-component, polyurethane-based potting resin for auditing according to the stringent WRAS test procedure. Among other things, the organisation promotes regulations for keeping the UK’s drinking water clean and checks compliance with them. During the evaluation of materials, special focus is placed on the possible release of heavy metals, changes in the taste and smell of the water samples and the prevention of harmful effects on cellular and aquatic organisms.

    The polyurethane potting resin made of WEVOPUR 2082 and the hardener WEVONAT 1000 has passed the rigorous tests and is now certified in accordance with BS 6920-1:2000/2014. As a result, the product can be used to manufacture drinking water filters and to protect electrical and electronic components that are in constant contact with drinking water at temperatures of up to 23 °C. Potential applications in the areas of drinking water management and filtration alongside conventional water filters include flow sensors, pump housings and control panels. Other potential application areas are systems and filters for treating process water, such as those used in power stations, the chemical and pharmaceutical industries, in breweries and in the production of juice and wine.


    ADVANTAGES IN PROCESSING AND USE THANKS TO WEVO POTTING RESIN

    Compared to the epoxy resins frequently used in the drinking water sector, this polyurethane potting compound offers a range of advantages in processing. The heat generated during processing is less, allowing potting to be carried out in one step without any interruption, also when potting larger volumes. This process is also void-free and safe – even with complex geometries – thanks to the relatively low viscosity of Wevo’s material. The aligned flow properties and good adhesion also ensure perfect wetting of the filter medium and excellent bonding to a wide variety of substrates. This allows filters based on ceramic materials or polymers such as polyether sulphone or PVDF to be reliably potted and bonded.

    The formulation of the Wevo potting resin consists of particularly pure raw materials, which are formulated in such a way that no volatile components are released. The product also combines high mechanical strength with a certain flexibility, making the material less brittle in use than a comparable epoxy resin. In addition, WEVOPUR 2082, together with the hardener WEVONAT 1000, provides excellent resistance to the cleaning and rinsing agents commonly used in water treatment systems.

    Image: Ceramic-based membrane filter encapsulated with WEVOPUR2082


    Press contact

    Alexandra Schubert
    Dr. Neidlinger Consulting
    Phone: +49 711 167 617-712

    Email


    Press information PDF

        20.01.2021 — WEVO NEWS

        Redox flow batteries – new possibilities with Wevo materials

        Redox flow batteries are elaborately constructed wet-cell batteries in which electrolytes, often based on vanadium, are circulated by means of pumps. The technology is seen as having great potential as a storage system for renewable energy from solar photovoltaic and wind farms or rooftop systems. However, the design of the battery stacks has been a real challenge so far as the aggressive electrolytes may cause stress on the materials.

        Potting and sealing compounds from Wevo can withstand these conditions – as demonstrated by a series of tests conducted by the company in cooperation with the Fraunhofer Institute for Chemical Technology (ICT) in Pfinztal, Germany. As a result, the tested polyurethane-, epoxy- and silicone-based Wevo resins and adhesives permit the battery stacks to be designed with greater freedom and make an important contribution toward the technology becoming fit for mass application. At the “2021 International Flow Battery Forum”, WEVO-CHEMIE GmbH presented the results in detail.

        DETAIL

        The increasing use of renewables means that more and more electricity being generated – whether by large wind and solar farms or by small and medium-sized privately owned PV installations – has to be temporarily stored decentralized. Since the lithium-ion batteries frequently used for this purpose suffer from a number of disadvantages – among other things with respect to the storage of energy over longer periods of time or decreasing storage capacities at low temperatures or over the course of use – alternative technologies are being sought. What are known as “redox flow batteries” or wet-cell batteries are already in use.

        Although their installation is more complicated as it involves manual work, they nevertheless enjoy a range of advantages over lithium-ion batteries that are particularly positive when it comes to the large-scale storage of electricity generated by wind or solar parks. On the one hand, their power and capacity can be scaled independently. What’s more, the technology is safe because the electrolyte they contain cannot catch fire or explode. A “thermal runaway”, i.e. overheating, can also be ruled out. Furthermore, the batteries usually have a long service life of 15 to 20 years and can be easily recycled later, because recovery and reprocessing of the active substances they contain are readily feasible.

        WEVO PRODUCTS PASS THE ENDURANCE TEST

        In cooperation with the Fraunhofer ICT, Wevo has tested the resistance of selected 2-component reaction resins based on polyurethane, epoxy and silicone in a sulphuric acid electrolyte containing vanadium. To this end, the research team stored the respective test samples for 135 days in different oxidation levels, including the especially aggressive V5+ level.

        At the end of this period, the condition of the test samples was examined to determine any changes in Shore hardness, weight and surface. The latter was done with the aid of a light microscope. In addition, the transparency and colour of the electrolytes were also evaluated. The findings: neither the test samples nor the electrolytes showed any significant changes. The materials tested can therefore be considered to be resistant in the highly aggressive sulphuric acid electrolyte and vanadium in the various oxidation levels.

        WEVOSIL 28001, WEVOPUR 9064 B/30 with WEVONAT 507 and WEVOPOX 32703 with WEVODUR 5009 can be used in redox flow batteries in different ways. By using them as sealing and bonding materials, they can replace the rubber and silicone seals that have been used up to now. This creates more freedom in the design of the battery stacks. In addition, they seal the bipolar membranes inside the battery securely and positively and thus protect the components and connecting bars against corrosion. In case of a complete encapsulation of the battery stack the technology is a safe option for home storage applications too, as the user is protected from the corrosive electrolyte.

        Image source: © malp – stock.adobe.com

         

        Press contact

        Alexandra Schubert
        Dr. Neidlinger Consulting
        Phone: +49 711 167 617-712

        Email


        Press information PDF

            10.06.2020 — MESSEN

            Wevo at the Productronica China in Shanghai

            Productronica China 2020: 03.-05.07.2020, Hall 5.1, Booth F517, Shanghai

            Wevo is again participating in Productronica China, one of the most important events in Asia since 2002. The fair showcases the entire value chain in electronics production in all industrial sectors.

            DETAIL

            We will show our tailor-made polyurethane, epoxy and silicone-based resin solutions for casting, bonding and sealing.

            30.01.2020 — MESSEN

            Wevo at the forum de l'électronique in Grenoble

            Forum de l‘électronique 2020: 11.–13.02.2020, Booth F80, Grenoble, France

            Forum de l’électronique, the event for innovations and electronic solutions, takes place in Grenoble. About 150 exhibitors present a wide range of technical and technological innovations for industry and research stakeholders. The show is highlighted by technical conferences, congresses and presentations.

            DETAIL

            In 2020, Wevo will be presenting its innovative and latest casting, bonding and sealing solutions.

            26.11.2019 — MESSEN

            Wevo at the Productronica in Munich

            Productronica 2019: 12.–15.11.2019, Hall A4, Booth 450, Munich

            The world's leading trade fair for the development and manufacture of electronics is where investment decision-makers and subject experts come together. It is where the technologies of the future and industry trends are discussed and where emerging markets are born.

            DETAIL

            Wevo has appeared at this trade fair for many years and will be presenting original casting solutions.

            27.09.2019 — MESSEN

            Wevo at the Coiltech in Pordenone

            Coiltech 2019: 25.–26.09.2019, Hall 5, Booth D20/D22, Pordenone, Italy

            Coiltech (Pordenone, Italy) is the fastest-growing international Coil Winding exhibition. The international trade fair for coils and windings follows the Coil Winding fair in Berlin, complementing it by incorporating the Italian market.

            DETAIL

            2019 will see Wevo exhibit at Coiltech in Pordenone with new polyurethane, epoxy and silicone-based resin solutions for casting, bonding and sealing.

            26.09.2019 — MESSEN

            Wevo at the Forum de l'électronique in Paris

            Forum de l'électronique 2019: 24.-26.09.2019, Hall 4, Booth B75, Paris, France

            Forum de l'électronique, the event for innovations and electronic solutions, takes place in Paris. About 200 exhibitors present a wide range of technical and technological innovations for industry and research stakeholders. The show is highlighted by technical conferences, congresses and presentations.

            DETAIL

            In 2019, Wevo will be presenting it's innovative and latest casting, bonding and sealing solutions.

            02.07.2019 — MESSEN

            Wevo at The Battery Show North America in Novi

            The Battery Show North America 2019: 10.–12.09.2019, Hall B, Booth 1901, Novi, USA

            The Battery Show Exhibition & Conference in Novi (MI) is a showcase of advanced battery technology for electric & hybrid vehicles, utility & renewable energy support, portable electronics, medical technology, military and telecommunications.

            DETAIL

            As an important partner to the automotive and energy industry, Wevo will present new polyurethane, epoxy and silicone-based resin solutions for casting, bonding and sealing.

            27.05.2019 — MESSEN

            Wevo at the PCIM Asia in Shanghai

            PCIM Asia 2019: 26.–28.06.2019, Hall 2, Booth F15, Shanghai

            Like PCIM Europe, the PCIM (short for Power Conversion, Intelligent Motion) event in China is an international meeting ground for specialists in power electronics and its applications in drive technologies and power quality.

            DETAIL

            In 2019, Wevo will be presenting it's innovative solutions for the areas of e-mobility, energy and power electronics.

            29.03.2019 — MESSEN

            Wevo at the CWIEME in Berlin

            CWIEME 2019: 21.–23.05.2019, Hall 4_2, Booth F26, Berlin

            Following 23+ years of success, CWIEME continues to be the world leading exhibition for coil, electric motor, transformer and generator manufacturing technologies.

            DETAIL

            Wevo has been an exhibitor at the CWIEME since many years and will be displaying its latest casting, bonding and sealing solutions.

            29.03.2019 — MESSEN

            Wevo at the ees Europe in Munich

            ees Europe 2019: 15.–17.05.2019, Hall C1, Booth 518, Munich

            The ees Europe is the largest and most-visited exhibition for batteries and energy storage systems in Europe and one of the most important global energy storage exhibitions.

            DETAIL

            As an important partner to the automotive and energy industry, Wevo is going to be the first time an exhibitor at the ees Europe.

            29.03.2019 — MESSEN

            Wevo at the PCIM Europe in Nuremberg

            PCIM Europe 2019: 07.–09.05.2019, Hall 6, Booth 242, Nuremberg

            At the PCIM Europe international exhibitors inform visitors about the newest products, trends and developments in the power electronics industry.

            DETAIL

            PCIM is the forum for technologies for the whole value chain of the power electronics industry, from the components to the intelligent system.

            In 2019, Wevo will be presenting innovative solutions for the areas of e-mobility, energy and power electronics, to name a few.

            29.03.2019 — MESSEN

            Wevo at The Battery Show Europe in Stuttgart

            The Battery Show Europe 2019: 07.–09.05.2019, Hall 1, Booth 734, Stuttgart

            The Battery Show is Europe’s largest trade fair for advanced battery technology.

            DETAIL

            More than 400 manufacturers and service providers from across the supply chain will display thousands of design, production and manufacturing solutions. In 2019, the expo and conference is moving to Stuttgart, one of the centres in the German automotive industry.

            As an important partner to the automotive and energy industry, Wevo will play an integral part at the fair, presenting new polyurethane, epoxy and silicone-based resin solutions for casting, bonding and sealing.

            18.02.2019 — MESSEN

            Wevo at the Productronica China in Shanghai

            Productronica China 2019: 20.–22.03.2019, Hall W1, Booth 1352, Shanghai

            Wevo is again participating in Productronica China, one of the most important events in Asia since 2002. The fair showcases the entire value chain in electronics production in all industrial sectors.

            DETAIL

            We will be on show with our tailor-made polyurethane, epoxy and silicone-based resin solutions for casting, bonding and sealing.