Your browser is no longer supported

For the best possible experience using our website we recommend you upgrade to the newest version of your browser.

Your browser appears to have cookies disabled. For the best experience of Construction News, please enable cookies in your browser.

Welcome to the Construction News site. As we have relaunched, you will have to sign in once now and agree for us to use cookies, so you won't need to log in each time you visit our site.
Learn more

Melting wax may be key to cooling


CHEMICAL company BASF has developed a plasterboard that can absorb heat and help maintain constant temperatures in buildings.

Its Micronal PCM SmartBoard uses paraffin wax within a plasterboard mix to absorb excess heat when the wax melts.

During the wax's transition from solid to liquid, a large amount of thermal energy is consumed and, in the same way as an ice cube keeps a drink cool when it melts, the wax helps to cool a room.

BASF's development team has altered the melting point of the paraffin wax so that it melts at 23 or 26 deg C, preventing room temperature from rising past these levels. This could spell the end for air conditioning systems, according to researchers at the Fraunhofer Institute in Germany.