Toluene diisocyanate (TDI, CAS 26471-62-5) is an aromatic diisocyanate used as a reactive monomer in the production of polyurethanes and isocyanate-terminated prepolymers. It is deployed across large-scale industrial applications where rapid urethane formation and tailored reactivity are required.
Application
- Flexible polyurethane foam production
Primary monomer for flexible foams used in furniture, bedding and automotive seating. - Rigid polyurethane systems and insulation
Component in formulations for rigid foams, PIR/PUR insulation and specialty rigid composites. - Coatings, adhesives, sealants and elastomers (CASE)
Building block for crosslinkable resins and prepolymers in high-performance coatings, adhesives and elastomeric materials. - Prepolymer and polyol modification
Used to synthesize isocyanate-terminated prepolymers and to modify polyol functionality for tailor-made reactivity. - Specialty chemical intermediates and surface modifiers
Intermediate for specialty isocyanate derivatives, surface treatment agents and coupling chemistries. - Analytical and laboratory reagent
Small-pack reagent for R&D, polymer development and QC method validation.
