Chlorofluorocarbon. A physical blowing agent containing at least one carbon, one fluorine and one chlorine atom in its structure (for example: CFC-11). Their use was phased out in the US as a spray foam blowing agent between 1993 and 1996.

SPFA believes that the path to a healthful, safe, high-quality and performing SPF installation travels through the hands of a knowledgeable, trained, experienced, and ideally PCP-certified professional contractor.