Single Component Spray Polyurethane Foam

A Common Product profile (CP) is a type of data record originally developed as part of a collaboration called the Quartz Project. The profiles are not specific to any manufacturer, but list the substances that are most commonly present in a product type. The CPs include a general description of the product type, a list of the most common substances serving each function in the product, and the health hazards associated with these substances. See the CP methodology here for more information.

This CP presents research done by Healthy Building Network alone following the completion of the Quartz effort.

Representative Manufacturers



Single component polyurethane spray foam comes in a range of products with different properties for different applications. This product is supplied in a can for either direct application with a straw or application with a special gun. The general composition includes one or more isocyante, polyol, catalyst, hydrocarbon propellant/blowing agent, surfactant, and flame retardant. Typically, the isocyanate portion (MDI and/or PMDI) is mixed with the polyol portion, including additives, and then reacts to some extent in the can. This creates a prepolymer which further reacts with moisture in the air when applied on site. While there are many types of single component spray foam, the composition is typically similar, with minor differences in percentage of components. This CP covers specifically a low pressure spray polyurethane foam intended to fill gaps around door and window frames to seal against air and sound infiltration. These foams are minimally expanding to avoid warping of the door or window frames.

This information reflects our best understanding of product composition in 2016.


EHP - San Antonio Statement on BFRs & CFRs - Flame retardant substance class of concern for PB&T & long range transport from CHLORINATED FLAME RETARDANTS (CFRs)

GHS - Australia - H340 - May cause genetic defects from Isobutane

EC - CEPA DSL - Persistent from Dimethyl ether

MAK - Carcinogen Group 4 - Non-genotoxic carcinogen with low risk under MAK/BAT levels from Polymethylene polyphenyl isocyanate

MAK - Pregnancy Risk Group C from Polymethylene polyphenyl isocyanate

GHS - Australia - H361fd - Suspected of damaging fertility. Suspected of damaging the unborn child from Tris(2-chloroisopropyl) phosphate

TEDX - Potential Endocrine Disruptors - Potential Endocrine Disruptor from Tris(2-chloroisopropyl) phosphate

MAK - Sensitizing Substance Sah - Danger of airway & skin sensitization from Polymethylene polyphenyl isocyanate

GHS - Australia - H330 - Fatal if inhaled from Polymethylene polyphenyl isocyanate

GHS - New Zealand - 6.9A (inhalation) - Toxic to human target organs or systems (Cat. 1) from Polymethylene polyphenyl isocyanate

EU - GHS (H-Statements) - H220 - Extremely flammable gas from Dimethyl ether

See the Pharos record HERE for more details and the sources used to create this Common Product profile.

Last updated: May 17, 2018