Toluene Diisocyanate (TDI) is a key aromatic isocyanate widely used in the production of flexible polyurethane foams. It is primarily manufactured through the phosgenation of toluene diamine (TDA) and is available in different isomer grades, most commonly TDI 80/20.
TDI is highly valued for its reactivity with polyols, enabling the formation of polyurethane materials with excellent flexibility, resilience, and load-bearing properties. At Qchem, we supply high-purity TDI suitable for a wide range of industrial and commercial applications, ensuring consistent processing and high-performance end products.
TDI plays a critical role across multiple industries, particularly in polyurethane-based products:
The largest application of TDI is in the production of flexible foams used in:
These foams offer excellent comfort, breathability, and durability.
Used in manufacturing:
TDI-based foams contribute to passenger comfort and safety.
Flexible polyurethane foams are used for:
TDI is used in specialty formulations to produce:
These applications benefit from improved elasticity and adhesion.
Used in the production of:
| Property | Value |
|---|---|
| Chemical Name | Toluene Diisocyanate |
| Chemical Formula | C₉H₆N₂O₂ |
| Isomer Composition | 80/20 or 65/35 |
| Appearance | Clear to pale yellow liquid |
| Odor | Sharp, pungent |
| Density | ~1.20–1.23 g/cm³ |
| Boiling Point | ~250–252°C |
| Viscosity | Low (easy processing) |
| Reactivity | Highly reactive with polyols |
TDI reacts readily with polyols in the presence of catalysts, surfactants, and blowing agents to form polyurethane foam. It is highly compatible with:
This flexibility allows manufacturers to fine-tune foam density, hardness, and resilience based on application requirements.
All packaging complies with international safety and transportation standards.
Qchem delivers premium-quality TDI backed by strong technical understanding and a reliable supply chain. We partner with globally recognized manufacturers to ensure consistent quality, competitive pricing, and uninterrupted availability.
Our team supports clients with product selection, logistics coordination, and responsive service—helping you maintain efficiency and scale with confidence.
Looking for a dependable TDI supplier? Contact Qchem today for bulk supply, technical assistance, and customized solutions tailored to your production needs.
