Unlike CFC and HCFC blowing agents formerly used for this purpose, it has no ozone depletion potential and is nearly non-toxic. Although it is intended to remain trapped within the foam insulation, it is practically non-biodegradable with a lifetime of 7.2 years when it eventually does escape into the atmosphere.
Unlike CFC and HCFC blowing agents previously used for this purpose, this alternative has no ozone depletion potential and is nearly non-toxic. Although designed to remain trapped within the foam insulation, it is practically non-biodegradable with a lifespan of 7.2 years when it eventually escapes into the atmosphere.