What is it?
Diphenylmethane-4, 4-Diisocyanate is a polyurethane resin and is used in spandex and rubber bounding.

How can I avoid it?
Avoidance requires reading the product labels, package inserts, Safety Data Sheets (SDS), and on occasion, direct communication with the manufacturer.

  • Adhesives
  • Foam plastics
  • Glues (Gorilla Glue®)
  • Polyurethane lacquers
  • Polyurethane foam
    • Building materials
    • Refrigerators
    • Vehicles
  • Rubber
  • Sealants
Other names for Diphenylmethane-4, 4-Diisocyanate:
  • MDI
  • Diisocyanato-diphenyl methane 4,4
  • Methylenebis (4 phenylisocyanate)
  • Crude MDI-polymethylene polyphenyl isocyanae. (PAP or PMPPI)
  • Methylane diisocyanate
  • Diphenyl methane diisocyanate
  • 4,4’-methylenebis(phenyl isocyanate)
Potential cross-reacting/co-reacting substances:
  • Other diisocyanates

How safe is it?

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