Good question! Insulation companies have been cleaning up their products by using non-HFC blowing agents (HFO). Believe the same might apply to structural foam.
Thanks to @anthony.pak 's excellent research and sharing
SOURCE
Good question! Insulation companies have been cleaning up their products by using non-HFC blowing agents (HFO). Believe the same might apply to structural foam.
Thanks to @anthony.pak 's excellent research and sharing
SOURCE