Workplace vapors have produced reversible corneal epithelial edema, impairing vision. MDI is a known skin sensitizer. If exposure to skin occurs, treat symptomatically as for contact dermatitis or thermal burns. If burned, treat as thermal burns. MDI is also a known pulmonary sensitizer.
Treatment is essentially symptomatic.
An individual having a skin or pulmonary sensitization reaction to this material should be removed from further exposure to any isocyanate. F accelerate the reaction of MDI with water, which releases carbon dioxide. Explosive rupture of closed containers is possible. For large scale fires, alcohol-resistant foams are preferred, if available. General purpose synthetic foams or protein foams may function, but much less effectively.