UPDATED on Feb. 9, 2017 Reformulated versions of spray polyurethane foam with only a tiny fraction of the global warming potential of their predecessors are getting easier to find. Texas-based Demilec, a manufacturer with distribution in both the U.S. and Canada, is among those offering a medium-density closed-cell spray foam made with a hydrofluoroolefin (HFO) blowing agent, the next generation of chemistry for the industry. Similar products are here or on the way.
