Does Your Product Contain Methylene Diphenyl Diisocyanates (MDI)?

 In Product Safety, Uncategorized

By: Ivy Tang, Product Safety Specialist, email

In May 2019, five MDIs (methylene diphenyl diisocyanates) were added to Schedule 1 of the List of Toxic Substances of the Canadian Environmental Protection Act (CEPA 1999). The Government of Canada concluded that the MDIs met the criterion in CEPA Paragraph 64(c) and constitute a danger to human life and health. MDIs are often found in polyurethane foams, coatings, adhesives, sealants, and other ‘DIY products,’ thus exposing consumers to health risks including respiratory problems, irritation, and cancer.

The Government of Canada is proposing to partner with industry and retail to reduce MDI exposure. If you are a vendor supplying products containing at least one of the five MDIs listed below, be prepared for your Retailer to approach you. In the meantime, it is advised that you review your product listings or consult with your manufacturer, and ensure you have the correct safety warnings and labels.

Group of SubstancesCAS RNChemical Substance
MDI101-68-8Benzene, 1,1′-methylenebis[4-isocyanato-
MDI2536-05-2Benzene, 1,1′-methylenebis[2-isocyanato-
MDI5873-54-1Benzene, 1-isocyanato-2-[(4-isocyanatophenyl)methyl]-
MDI9016-87-9Isocyanic acid, polymethylenepolyphenylene ester
MDI26447-40-5Benzene, 1,1′-methylenebis[isocyanato-

For more information regarding MDIs or Canada’s Chemical Management Plan (CMP), contact Dell Tech.

Dell Tech Laboratories
Ivy Tang, B.Sc.
Product Safety Specialist
519-858-5021 ext 2043

Dell Tech has provided professional, confidential consulting services to the chemical specialty industry in Canada, the USA, Europe, and Asia for the last 40 years.
Contact us today for more information.

Recommended Posts

Leave a Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Hazard Assessment Form With Clipboard On A Desk.Woman smiling behind computer screen