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Panel: Stephen Wieroniey
Media: Brian Grossman

Spray polyurethane foam (SPF) insulation is an effective and proven building material with a 40-year track record of success. It offers exceptional thermal insulation and air sealing performance under a wide range of temperatures and makes a valuable contribution towards helping California achieve the energy efficiency and climate change goals supported by Governor Jerry Brown and mandated by AB 32, SB 32 and Title 24.

The California Department of Toxic Substances Control’s (DTSC) currently lists SPF systems containing unreacted MDI as a Priority Product under the Safer Consumer Products (SCP) regulation. ACC strongly disagrees with DTSC’s listing decision as being scientifically unjustified and not supported by the record, but notes that the listing does not restrict use of the product. This chemical/product combination is well-studied and is already subject to robust regulatory controls and stewardship programs.

DTSC’s inclusion of SPF containing unreacted MDI as a Priority Product ignores the nine years of collaborative work that ACC and its member companies have conducted with organizations including the Environmental Protection Agency, National Institute for Occupational Safety and Health, Occupational Safety and Health Administration and the Consumer Product Safety Commission to share safety data and demonstrate the benefits of our products. ACC provided robust science and safety information to DTSC, which demonstrated the effectiveness of the product stewardship efforts already in place. 

Understanding SPF Insulation: 

  • To read ACC’s statement on DTSC’s decision to list SPF Systems with Unreacted MDI as a Priority Product, please click here.
  • Consumers should continue relying on SPF to help maximize the energy efficiency of buildings where they live, work and play.
  • SPF plays an important role to help California achieve the energy efficiency and climate change goals mandated by Governor Brown, AB 32 (California’s landmark Climate Change legislation), and Title 24.
  • SPF is an effective and proven building material with a long record of success.
  • Diisocyanates are well-studied and regulatory limits exist for MDI, a diisocyanate, used in SPF.
  • Learn more about the benefits of Spray Polyurethane Foam. To find out how spray polyurethane foam can specifically help Californians, click here.
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