Reapor® glass foam
Sintered, open porous inorganic foams – a contradiction?
An increased demand of industry for non-fibrous absorber materials for immission control allowed the development of new open porous materials. In the 1980s already, a mineral organic plaster foam on the basis of REA-plaster, a secondary raw material from flue gas desulphurization, water and a pre-polymer was formulated, which is successfully used as sound absorber in partition wall construction systems for offices nowadays.
In the last few years, a method was developed by means of which non-combustible inorganic foams (REAPOR®) can be produced with a defined adjustable micro- and macro-porous structure, whose characteristics may be adjusted to various requirements.
These light materials are mechanically loadable, non-combustible and adjusted to recycling processes. They have a high sound absorption quality, a low thermal conductivity, a good chemical resistance, and they are easy to handle. According to the design of the REAPOR® porous structure, broadband sound absorbers for firm track systems of railed vehicles or high-quality thermal insulating masonry plates may be realized.