BASF’s Micronal phase-change microcapsules (PCM) apply an established technique used in space exploration technology for interior temperature management in buildings. The technique is simple: Plastic capsules are filled with a wax that absorbs and releases energy by melting and solidifying. When integrated within an astronaut’s spacesuit, a soldier’s garments, or within an interior plaster or plasterboard wall, the capsules increase the thermal capacity of the material and act to dampen temperature swings. As a result, astronauts in space and soldiers in the field feel more comfortable. In a similar way, buildings constructed with Micronal modified plaster materials provide greater comfort for the occupants, and reduce air conditioning system energy needs by up to one-third, depending on the overall design of the construction.