Polymeric TDICAS 9017-01-0
Higher-oligomer TDI used where lower vapor pressure is needed — same sensitization risk as monomeric TDI.
Toxic Chemical Databases
Substance-specific listings — these flags are for Polymeric TDI alone, not for the broader family.
Chemical Type
Polymeric Aromatic Diisocyanate
Chemical Description
Polymeric TDI is the higher-molecular-weight oligomer mixture of TDI. The polymerized form has lower vapor pressure than monomer TDI, reducing inhalation risk from vapor — but spray and aerosol applications still drive respiratory exposure to the same sensitization endpoint. Used in specialty foam, elastomers, and some two-part adhesives where TDI chemistry's reactivity profile is needed but monomer volatility must be minimized.
Biological Activity
Severity scores specific to this substance, NOT the parent family average. Differences between siblings are real and meaningful.
Top Health Consequences
- Respiratory sensitization and occupational asthma
- IARC Group 2B carcinogen (carried from TDI parent classification)
- Skin sensitization
Pathways of Exposure
- Aerosol inhalation during specialty foam manufacturing
- Off-gassing during cure
- Skin contact with uncured product
Building Materials with Polymeric TDI
Listed alphabetically — product categories where this specific substance appears.
Specialty Polyurethane Foam
Two-Part Polyurethane Adhesives
Urethane Elastomer Mouldings
How We Keep Polymeric TDI Out of a House
Polymeric TDI is one of the substances our screening is built to catch. A healthy home is won in the specification and the submittal review, long before anyone opens a bucket on site.
If you want a house specified this way from the start, or an existing house assessed for what is already in it, that is the work we do. Earth Bound Homes builds in Menlo Park, Redwood City, San Mateo County and across the San Francisco Bay Area.