Entropy Solutions develops shape-stabilized versions of 2 PureTemp PCMs03-Aug-2016

The "gelled" material maintains its shape even as the PCM cycles between solid and liquid form. ..

Vesl adds 4 high-performance containment options for PureTemp phase change material22-Feb-2016

MatVesl, CanVesl, TubeVesl and PackVesl are designed to transfer thermal energy efficiently in a wid..

Entropy Solutions joins RAL Quality Association PCM12-Jan-2016

The international group, formed in 2004, promotes the use of high-quality phase change material and ..

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About Ben Welter


Ben WelterBen Welter joined PureTemp as director of communications in 2014. He is a passionate storyteller with more than 30 years of experience in journalism. As editor of, he oversaw online coverage of the 9/11 attacks and the wars in Afghanistan and Iraq and directed the expansion of the site’s multimedia and breaking news capabilities. He also served as copy desk chief, news editor and online producer at the Star Tribune, Minnesota's largest news-gathering organization.

In 2005, he began scouring Star Tribune microfilm in search of interesting stories and photos dating back to 1867. He has posted more than 600 of the best on his blog, Yesterday's News, He has written three books based on the blog, "Minnesota Moxie," “Minnesota Mayhem” and “Minnesota Mysteries.”

Mr. Welter manages PureTemp corporate communications, the PureTemp website and Phase Change Matters, an award-winning industry blog that tracks latest news and research on phase change materials and thermal energy storage. Send your PCM- and TES-related news tips to