Methylene diphenyl diisocyanate (MDI):
MDI is used primarily to make rigid polyurethane.

Market Dynamics:
The key markets that impact MDI availability are insulators (refrigerators and freezers), construction and new auto sales.

Up Stream Materials/Building Blocks:
​​Aniline

Diphenylmethane diamine

Formaldehyde

Hydrochloric acid

Nitrobenzene

Phosgene 

Down Stream Materials Consuming MDI:

Construction

Insulation

Refrigeration

Packaging

Spray polyurethane foam (SPF)