What is Toluene Diisocyanate?
Toluene Diisocyanate (TDI) is an aromatic diisocyanate primarily used in the production of polyurethane products. It is a clear to pale yellow liquid with a sharp odor and high reactivity, making it essential in producing flexible foams, coatings, adhesives, and sealants. TDI is typically available in two isomers: 2,4-TDI and 2,6-TDI, often supplied as an 80/20 blend.
Common Applications
- Flexible Polyurethane Foam: Used in furniture cushions, mattresses, automotive seating, and bedding materials.
- Coatings: Applied in the formulation of paints and industrial coatings for enhanced durability and chemical resistance.
- Adhesives & Sealants: Provides strong bonding properties for use in packaging, construction, and automotive sectors.
- Elastomers: Utilized in the production of molded elastomeric components and footwear soles.
- Insulation Materials: Employed in spray foams and insulation boards for construction and refrigeration.
- Textile Industry: Used in textile coatings for waterproofing and added strength.
Specifications
| Parameter | Value |
| Purity | ≥ 99.5% |
| Appearance | 80/20 (2,4-TDI / 2,6-TDI) |
| Acid Value | Clear to Pale Yellow Liquid |
| Iodine Value | 251°C (approx.) |
