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The systems consist of a polyurethane-based resin (A-component) and MDI isocyanate hardener (B-component), which are mixed with each other in a predetermined mixing ratio. After chemical reaction of the two material components and a suitable processing time, a bubble-free potting compound is formed in a few minutes.
The function of the potting compound is determined by the application. It can range from a surface coating to protect against environmental effects, to encapsulating electronic components or bonding components. The flowability, reactivity, degree of hardness, adhesion properties and color of the material formulations can be adjusted as required.
Henkel can draw on the variety of more than 500 application-specific formulations of the FERMADUR product family.
Your product is important to us – we will be happy to advise you!
FERMADUR systems are processed using mixing and dosing machines for two components. The recommended processing temperature is 23 °C ± 5 °C at a relative humidity between 40 and 70 %.
FERMADUR systems are designed with many different characteristics, and available for use in very difficult surroundings, from outdoor or underwater uses to flame-protected applications for lighting in tunnels, or from uses requiring ATEX protection in explosion risk zones right up to optical potting, with good heat dissipation qualities for the high temperatures produced by high-power LED light technologies.
Depending on the complete construction, part and potting can reach impermeability classes to IP68 with FERMADUR, meaning that using our pool light potting compounds for underwater lighting is possible.
For tunnel lighting, flame-retardant FERMADUR products can be created to meet UL94 V-0 testing standards.
For explosion-protected lighting elements, e.g., for emergency lighting in hazardous surroundings underground, our FERMADUR potting systems are formulated to withstand ATEX system testing in accordance with ATEX Directive 2016/34/EC.
The transparent polyurethane-based FERMADUR LED potting compound products, e. g. for the sealing of LED lights, are protected from UV radiation by using aliphatic isocyanates and are temperature-stable to 130 °C.
The function of the FERMADUR potting system is determined by its application and can range from part protection against environmental influences through the sealing of electrical assemblies to the bonding of components such as the filter systems used in industry and the home.
Component sealing with FERMADUR potting protects parts against moisture, dust, water, and other contaminants. The chemical properties of the material recipe can be varied so that the potting compound can be adapted to perfectly meet the task requirements.
FERMADUR potting also can be used to encapsulate electronics and for interference protection and electrical insulation of cables and plugs. Potting increases the mechanical stability and dielectric strength of the electronic parts, their vibration, and shock resistance.
Potting with FERMADUR products impedes detachments or the opening of crevices at the edge of the potting compound because of dramatic temperature differences or vibrations so that moisture or aggressive materials cannot penetrate the part and adversely affect its functionality or even destroy it.
According to their conditions of use, FERMADUR potting systems can be widely adapted for ease of flow, reactivity, hardness grade, adhesion properties, and color.
FERMADUR potting possesses a very high tear resistance and flexural strength so components can still function properly even under extreme environmental conditions.
The FERMADUR potting systems offer a wide range of properties for different applications and requirements, from potting for lighting and sensitive electronic components through the bonding of filter packets and viewing windows in control cabinets to the coating of conveyor belts and transparent component surfaces.
*The description of the possible fields of use of our products as well as the technical data and values only have a general character and do not mean that a certain product can be used under all conditions in the respective field of use. In this respect, the stated field of use is not a binding specification or usage provision. Due to the great number of environment variables and their influences (e.g., temperature, test specimens, size, interaction with substrates, influence of machines, or the like) you, as our customer, must check whether the product is suitable for your specific field of use. We will be pleased to assist and advise you in this respect.
