High performance, LGWP blowing agent for XPS and rigid polyurethane foam Honeywell Solstice Gas Blowing Agent has been developed for extruded polystyrene and pressurized one- and two-component polyurethane (PUR) foams. It is a replacement for HFC-134a, CO , 152a, and other fluorocarbon and non-fluorocarbon foam blowing agents. Solstice GBA is nonflammable by ASTM E-681 and EU A11 test methods. It has a very low global warming potential (GWP) of <1, a low Maximum Incremental ReactivityInformation provided by Honeywell |