A container of A-side (MDI) and a container of B-side (polyol or resin blend) which can be combined through mixing equipment to form SPF. A set of foam consists of two containers, typically 55-gallon drums.

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.