Liquid Mdi Isocyanate is a chemical compound used primarily in the production of polyurethane foams and elastomers. It is a colorless to yellowish liquid with a pungent odor and is commonly referred to as liquid MDI isocyanate. This is widely used in the construction, automotive, and furniture industries, among others, for insulation and cushioning applications. t is also used in the production of coatings, adhesives, and sealants. Liquid Mdi Isocyanate should also be stored in a cool, dry place away from sources of heat and ignition. Waste MDI should be disposed of according to local regulations.