puren, based in Überlingen on Lake Constance, is in business for over 50 years, making the medium-sized, internationally active group of companies with over 300 employees and its managing director Dr. Andreas Huther one of the pioneers in the field of rigid polyurethane (PU) foam technology. 
Issues such as environmental protection, energy saving and resource conservation have always played a major role for puren. Back in the early 1970s, when no one was talking about issues such as climate, water and nature protection, CO2 savings or the greenhouse effect, puren was ahead of its time with the further processing of production residues and the development of the functional material purenit as well as efficient oil and chemical binders for soil and water. 
The puren group's current field of activity is broad. The construction division covers the manufacture and sale of thermal insulation elements and systems for pitched and flat roofs, facades and floors through underground parking garage ceilings. The products, which are sold through specialist building materials dealers, are suitable for both new buildings and refurbishments and thus make a significant contribution to saving heating costs and protecting the environment.
In the industrial sector, complex applications require new and creative PU solutions time and again. Here, puren manufactures large-format rigid foam blocks with a wide variety of specific properties, which are further customized according to customer requirements. Whether blanks or molded parts for airship cabins, refrigerated vehicles, components for wagons and containers, window and door construction, shipbuilding or model making, there are virtually no limits to applications here.
With purenit, a new type of functional material is available that is fully convincing thanks to its versatility and material-specific properties. Where wood-based materials reach their limits, purenit holds its own with outstanding properties,

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