MDI (METHYLENE DI-P-PHENYLENE ISOCYANATE) Chemical compatibility with O-rings, rubbers, & plastics

Methylene di-p-phenylene isocyanate (MDI) is a white to yellowish solid with the chemical formula C₁₅H₁₀N₂O₂, used in various industrial applications. It is primarily employed in the production of polyurethane foams, elastomers, and coatings. MDI is also used as a binding agent in the manufacture of particleboard and as a cross-linking agent in adhesives and sealants. Despite its utility, MDI is highly toxic and poses significant health risks, including respiratory, skin, and eye irritation. Proper handling, storage, and stringent safety measures, including the use of personal protective equipment, are essential to ensure safe usage and prevent exposure.

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