FERMADUR is the trade name for Sonderhoff’s two- component polyurethane systems for the manufacture of hard to gel-like potting compounds which are placed and cured directly onto or into the component using FIP (Formed-in-Place) technology. The systems consist of a resin basis (A-component) and a hardener (B-component) which are mixed together in a prescribed ratio, forming a bubble-free potting compound after only a few minutes. The function of the potting compound is determined by the application and uses range from surface coating to protect against environmental effects, to encapsulating electronic components or gluing components. The flowability, reactivity, hardness classification and colour of the components can be adjusted as required.