Insulation and soundproofing
New HFO blowing agents for spray foam will make it over 1,000 times less harmful to the climate
...blowing agents for foam insulation. That halted ozone depletion but handed the burden to the climate change file instead.
Blowing agents are the gasses that expand the foam to its rigid shape, and those tiny bubbles of gas act as insulators. They're found in XPS rigid panels and spray polyurethane foam (SPUF) as well...