METHYLENE DIPHENYL DIISOCYANATE (MDI)
Component-A in spray polyurethane foam. An organic chemical compound having two reactive isocyanate (-N=C=O) groups. It is mixed with the B component to form polyurethane.
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.